TEG Properties

Trie

thyle

ne G

lycol

i

Table ofContents

Introduction 1Quality, Service, and Product Information . . . . . . . . . . . . . . . . . . . . . 1

Table 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Product Stewardship Guidelines and Principles . . . . . . . . . . . . . . . . . . 3

Non-supported applications of Dow-manufactured EG, DEG,TEG,TETRA, and By-Products of Glycol Manufacturing . . . . . . . . . . . . . . . . . . . . 3

Properties 5Table 2 Physical Properties of Triethylene Glycol . . . . . . . . . . . . . . . 5

Table 3 Solubilities of Various Materials in Triethylene Glycol . . . . . . . . 6

Table 4 Triethylene Glycol Compatibility with Elastomeric Materials . . . . . 7

Table 5 Constant Boiling Mixtures of Triethylene Glycol . . . . . . . . . . . 8

Figure 1 Freezing Points of Aqueous Triethylene Glycol Solutions . . . . . . . 9

Figure 2 Boiling Points vs . Composition of Aqueous Triethylene Glycol Solutions at Various Pressures . . . . . . . . . . . . . . . . 10

Figure 3 Condensation Temperatures vs . Composition of Aqueous Triethylene Glycol Solutions at Various Pressures . . . . . . . . . . 11

Figure 4 Vapor Pressures of Triethylene Glycol at Various Temperatures . . 12

Figure 5 Vapor Pressures of Aqueous Triethylene Glycol Solutions at Various Temperatures . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 6 Specific Gravities of Aqueous Triethylene Glycol Solutions . . . . . 14

Figure 7 Viscosities of Aqueous Triethylene Glycol Solutions . . . . . . . . . 15

Figure 8 Specific Heats of Aqueous Triethylene Glycol Solutions . . . . . . . 16

Figure 9 Thermal Conductivities of Aqueous Triethylene Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 10 Dew Points of Aqueous Triethylene Glycol Solutions at Various Contact Temperatures . . . . . . . . . . . . . . . . . . . 18

Figure 11 Comparative Hygroscopicities of Various Glycols at 70°F (21°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12 Refractive Indices of Pure Triethylene Glycol . . . . . . . . . . . . 20

ii

Figure 13 Refractive Indices of Aqueous Triethylene Glycol Solutions at 77°F (25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 14 Surface Tensions of Pure Triethylene Glycol . . . . . . . . . . . . . 22

Figure 15 Surface Tensions of Aqueous Triethylene Glycol Solutions at 77°F (25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 16 Electrical Conductivities of Aqueous Triethylene Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Health and Environmental Information 25Health Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Environmental Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Biodegradation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Storage and Handling 26Shipping Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Product Safety 27

Emergency Service 28

Sales Office 29

Table ofContents

1

Introduction

Introduction

Precautions: Carefully review our current Material Safety Data Sheet

Dow: Your Best Source for Triethylene Glycol Quality Dow is the world’s largest producer of ethylene oxide and glycols, with over 70 years of experience in their manufacture, marketing, and research and development . The uniform implementation of statistical process control at all of our plants enables us to consistently deliver the high-quality product you require . Our total approach to Quality and Quality Systems is continuously improved to ensure that our facilities meet the requirements for registration to the stringent ISO 9000 series of standards .

Optimum performance demands a quality product, and that is what we deliver . Our vast distribution system of plants, terminals, tankers, barges, tank cars, and trucks helps to ensure your delivery of triethylene glycol when and where you need it .

Service For solutions to problems or answers to questions, Dow offers extensive technical service and support, available through trained sales representatives as well as our skilled staff from the Research and Development Department . Your order of triethylene glycol will be processed expertly and quickly when you place a call to one of our many helpful customer service representatives . (See page 29 .)

Product Information Formula C6H14O4 Molecular Formula HOCH2CH2OCH2CH2OCH2CH2OH

CAS Number 112-27-6 Synonyms Glycol-bis(hydroxyethyl) ether 2,2’-[1,2-ethanediylbis(oxy)] bis-ethanol Triglycol TEG T3EG TriEG

Triethylene glycol is a transparent, colorless, low-volatility, moderate-viscosity, water-soluble liquid . Under normal conditions, there is no detectable odor; under high vapor concentrations, a slightly sweet odor may be detected . It is completely miscible with water and many organic liquids . Triethylene glycol has properties similar to other glycols and may be used preferentially in applications requiring a higher boiling point, higher molecular weight, or lower volatility than diethylene glycol .

The hydroxyl groups on triethylene glycol undergo the usual alcohol chemistry giving a wide variety of possible derivatives . Hydroxyls can be converted to aldehydes, alkyl halides, amines, azides, carboxylic acids, ethers, mercaptans, nitrate esters, nitriles, nitrite esters, organic esters, perox-ides, phosphate esters and sulfate esters .

Triethylene glycol may be used directly as a plasticizer or modified by esterification . The solubility properties of triethylene glycol are important for many applications . End-uses for triethylene glycol are numerous . (See Table 1 .)

2

Introduction

Introduction

Hygroscopicity • Dehydration of natural gas

• Moisturizing and plasticizing cork, adhesives

Plasticizer • Safety glass

• Separation membranes (silicone rubber, polyvinyl acetate, cellulose triacetate)

• Ceramic materials (resistant refractory plastics, molded ceramics)

Low Volatility • Gas dehydration

Solvent • Resin impregnants and other additives

• Steam-set printing inks

• Aromatic and paraffinic hydrocarbons separations

• Cleaning compounds

• Polyethylene terephthalate production equipment cleaning

• Cyanoacrylate and polyacrylonitrile

Chemical Intermediate • Unsaturated polyester resin

• Various resins of the alkyd type used as laminating agents in adhesives

• Esterification products used in plasticizer intermediates for nitrocellulose lacquers and vinyl resins

• Polyester polyols for polyurethanes

• Thermoplastic polyurethanes

• Silcone compounds

• Emulsifiers

• Lubricants

Freezing Point Depression • Heat transfer fluids

Table 1 Applications

3

Introduction

Introduction

Product Stewardship Guidelines and Principles of The Dow Chemical CompanyThe following bullet points identify some applications that are NOT supported by Dow for EG Products on a go-forward basis . The reasons for these limitations include areas in which we have decided not to pursue for general business reasons and actions that would minimize unnecessary risk and liabilities to the business . In addition, the following list of uses not supported by Dow does not imply a Dow warranty or Dow support of uses in applications not covered by this list . This list is not all-inclusive .

Non-supported applications of Dow- manufactured EG, DEG,TEG,TETRA, and By-Products of Glycol Manufacturing (Dow EG Products):

• The use of Dow EG Products in the production of tobacco and in the manu-facture of tobacco products (including but not limited to additives, humectants, filters, inks, and paper) is not supported by Dow .

• The use of Dow EG Products for the generation of artificial smoke/theatrical fogs/mist is not supported by Dow .

• The use of Dow EG Products as an ingredient in fuel for warming foods (SternoTM-like application) or in fuel for heating an enclosed space where human exposure is possible is not supported by Dow .

• The use of Dow EG Products in fire extinguishing sprinkler systems is not supported by Dow .

• The use of Dow EG Products in the manufacture of munitions is not supported by Dow .

• The use of Dow EG Products in the production of deicers for use on roadways and pedestrian walkways is not supported by Dow .

• The use of Dow EG Products as a component of heat transfer fluids in systems where the heat transfer fluid could infiltrate (e .g ., via an exchanger leak, backflow prevention failure, or other means) a potable water system is not supported by Dow .

• The use of Dow EG Products purposely as a non-reacted component in a formulation for direct internal or external human/animal contact, including but not limited to ingestion, inhalation, and skin contact, and in medical/veterinary devices and medical/veterinary applications is not supported by Dow . (Examples of some such applications are uses as a direct component in foods, beverages, pharmaceuticals, cosme- tics, or personal care products .)

• The use of Dow EG Products for consumer or hospital deodorizing or air “purifying” purposes by spraying as an aerosol is not supported by Dow .

• The use of Dow EG Products as a non-reacted component in adhesives, packaging that has direct contact with food or beverages is not supported by Dow .

4

Introduction

Introduction

• The use of Dow EG Products as a non-reacted component in the formulation of glues, pastes, or items where the potential for sufficient human contact and/or ingestions exists (including but not limited to children’s school glues/paste or art/craft glue/paste) is not supported by Dow .

To enter into new applications beyond the traditional standard industrial use applications, contact your Dow representative to review the specific application . Dow has a risk assessment process whereby the application will be reviewed and a deter-mination will be made as to whether the application meets Dow’s requirements and can therefore be supported by Dow . Because use conditions and applicable laws may differ from one location to another and may change with time, when an application is supported by Dow, Dow does not warrant and is not responsible for the use in such application .

NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED .

Further, any violation of or failure to comply with the information contained in Dow’s Material Safety Data Sheet, Product Label, Product Information Guide, product literature or other product safety information is a misuse of Dow’s EG and Higher Glycol Products . These documents can be obtained by contacting your Dow representative or Dow’s Customer Information Group (800) 447-4369 . We can never specify all circumstances where misuse might occur, so if at any time a customer or downstream use appears to be improper or unsafe, please contact our Product Steward at (225) 353-6122 .

5 Properties

Properties

Property Scientific Units Common Units

Autoignition Temperature 349°C 660°F

Boiling Point at 760 mm Hg 288 0°C 550 4°F

∆ Boiling Point/∆ Pressure (750–770 mm Hg) 0 0073°C/kPa 0 055°C/mm Hg

Critical Pressure 3,313 3 kPa 24,852 mm Hg

Critical Specific Volume 0 443 L/gmol 7 10 ft3/lbmol

Critical Temperature 440°C 824°F

Dielectric Constant 23 69 23 69

Electrical Conductivity 0 20 x 10-6 mhos/cm 0 002 micromhos/cm

Evaporation Rate (Butyl Acetate = 1) <0 001 <0 001

Flammable Limits in Air, Lower 0 9%(V) 0 9%(V)

Flammable Limits in Air, Upper 9 2%(V) 9 2%(V)

Flash Point, Cleveland Open Cup ASTM D 92 191°C 375°F

Flash Point, Pensky-Martens Closed Cup ASTM D 93 177°C 350°F

Freezing Point -4 3°C 24 3°F

Heat of Combustion at 25°C -3,500 kJ/gmol -10,020 Btu/lb

Heat of Vaporization 62 5 kJ/gmol 179 Btu/lb

Molecular Weight 150 17 g/mol 150 17 g/mol

Onset of Initial Decomposition 240°C 464°F

Refractive Index, nD, 20°C 1 4559 1 4559

Solubility in Water at 20°C, wt% 100% 100%

Solubility of Water in Triethylene Glycol at 20°C, wt% 100% 100%

Specific Gravity, 20/20°C 1 1255 1 1255

∆ Specific Gravity vs ∆ Temperature (10–40°C) 0 00078/°C 0 00078/°C

Surface Tension 45 5 mN/m 45 5 dynes/cm

Vapor Density (Air = 1) 5 2 5 2

Vapor Pressure at 20°C <0 001 kPa <0 01 mm Hg

Viscosity at 20°C 49 0 mPs 49 0 cP

Table 2 Physical Properties of Triethylene GlycolDetermined on purified samples of Triethylene Glycol

The data provided for these properties are typical values, intended only as guides, and should not be construed as sales specifications .

6

Properties

Properties

Material Solubility

Acetone Completely Soluble

Animal Glue (Dry) Slightly Soluble

Benzene Completely Soluble

Carbon Tetrachloride 40 6

Castor Oil 0 3

Cellulose Acetate Completely Soluble

Chlorobenzene Completely Soluble

Coconut Oil Insoluble

Cottonseed Oil Insoluble

Dextrin Completely Soluble

Dextrin (10% in water) Insoluble

Dibutyl Phthalate 19 8

Dichloroethyl Ether Completely Soluble

Diethanolamine Completely Soluble

Ethyl Ether 20 4

Ethylene Glycol Stearate Slightly Soluble

Gum Damar Slightly Soluble

Heptane Slightly Soluble

Hydrous Wool Fat Slightly Soluble

Kauri Gum Slightly Soluble

Lard Oil Insoluble

Linseed Oil Insoluble

Methanol Completely Soluble

Monoethanolamine Completely Soluble

Nitrocellulose Completely Soluble

o-Dichlorobenzene Completely Soluble

Olive Oil Insoluble

Table 3 Solubilities of Various Materials in Triethylene GlycolSolubility, g/100 mL of Triethylene Glycol at 25°C

Material Solubility

Paraffin Oil Insoluble

Phenol Completely Soluble

Pine Oil Completely Soluble

Rosin 5 0

Shellac Slightly Soluble

Soy Bean Oil Insoluble

Sperm Oil Insoluble

Tall Oil 10 1

Tetrachloroethylene 17 7

Toluene 33 0

Tung Oil Insoluble

Turkey Red Oil 12 3

Urea 31 0

7

Table 4 Triethylene Glycol Compatibility with Elastomeric Materials

Properties

Properties

25˚C (77˚F) 80˚C (176˚F) 160˚C (320˚F)

Adiprene™ L-100 Good Poor Poor

Black Rubber 3773 Good Poor Poor

Buna N (or 25) Good Good

Buna S Good Fair Poor

Butyl Rubber Good Good

Compressed Asbestos Good Good Fair

EPDM Good Good Good

EPR Rubber Good Good Good

Hycar™ D-24 Good Fair

Hypalon™ Good Poor Poor

Kalrez™ Good Good Good

Natural Rubber Gum Good Poor Poor

Neoprene 7797 Good Fair

Red Rubber Number 107 Good Poor Poor

Saraloy™ 300 Good Poor Poor

Silicone No 65 Good Good

Thiokol™ 3060 Good Poor Poor

Viton™ A Good Good Poor

TemperatureMaterial

8

Properties

Properties

Table 5 Constant Boiling Mixtures of Triethylene Glycol

In Azeotrope

InUpperLayer

In LowerLayer

Triethylene Glycol Acenaphthene

1 1255 288 0277 9

271 5 3565

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol (5 mm Hg) Benzyl Ether

1 1255 145 5(a) Azeo(a) 2872

1585

6040

U 72L 28

Triethylene Glycol Benzyl Phenyl Ether

1 1255 288 0286 5

280 0 4060

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Biphenyl

1 1255 288 0256 1

None

Triethylene Glycol (3 mm Hg) Diethylene Glycol

1 12551 1184

135 3(a)

108 0(a)None(a)

Triethylene Glycol Diphenylmethane

1 1255 288 0263 0

263 0 2060

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol 1,2-Diphenylmethane

1 1255 288 0284 5

275 5 4258

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Ethyl Phthalate

1 1255 288 0298 5

< 285 5 > 58 (c) (c) (c)

Triethylene Glycol Isoamyl Benzoate

1 1255 288 0262 0

261 4 1486

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Isoamyl Oxalate

1 1255 288 0268 0

Reacts

Triethylene Glycol Isoamyl Salicylate

1 1255 288 0277 5

269 0 3070

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Methyl Phthalate

1 1255 288 0283 2

277 0 3367

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Phenyl Benzoate

1 1255 288 0315 0

286 0 8020

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol Phenyl Ether

1 12551 0677(b)

288 0259 0

258 7 397

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol (4 mm Hg) Phenyl Ether

1 12551 0677(b)

141 0(a)

102 0(a)None(a)

Triethylene Glycol Water

1 12551 0000

288 0100 0

None

Triethylene Glycol (10 mm Hg) Water

1 12551 0000

161 0(a)

11 0(a)None(a)

Specific Gravity

at 20/20°C

Boiling Point at

760 mm Hg, 0°C

Composition % by Wt at 20°CBoiling Point at

760 mm Hg, 0°C

Components AzeotropeRelative Volume

of Layers At 20°C, %

(a) At the pressure investigated; (b) At 30/20°C; (c) Data not available

9

Properties

Properties

Figure 1 Freezing Points of Aqueous Triethylene Glycol Solutions

The Dow Chemical Company Triethylene Glycol Product Guide

Figure 1: Freezing Points ofAqueous Triethylene Glycol Solutions

Temp

erat

ure,

°C

10

0

-10

-20

-30

-40

-50

Temp

erat

ure,

°F

50

40

30

20

10

0

-10

-20

-30

-40

-50

-60

Triethylene Glycol, Percent by Weight in Water

0 10 20 30 40 50 60 70 80 90 100

9

10

Properties

Properties


Figure 2: Boiling Points vs. Composition ofAqueous Triethylene Glycol Solutions at Various Pressures

Temp

erat

ure,

°C

350

300

250

200

150

100

50

Temp

erat

ure,

°F

140

180

220

260

300

340

380

420

460

500

540

580

620

660

Triethylene Glycol, Percent by Weight in Water0 10 20 30 40 50 60 70 80 90 100

10

1520 mm Hg*

760 mm Hg

300 mm Hg

*2 atmospheres absolute, 1 atmosphere gauge

Figure 2 Boiling Points vs Composition of Aqueous Triethylene Glycol Solutions at Various Pressures


11

Properties

Properties

Figure 3 Condensation Temperatures vs Composition of Aqueous Triethylene Glycol Solutions at Various Pressures


Figure 3: Condensation Temperatures vs. Composition ofAqueous Triethylene Glycol Solutions at Various Pressures

Temp

erat

ure,

°C

350

300

250

200

150

100

50

Temp

erat

ure,

°F

140

180

220

260

300

340

380

420

460

500

540

580

620

660

Triethylene Glycol, Percent by Weight in Water0 10 20 30 40 50 60 70 80 90 100

11


1520 mm H g*

760 mm Hg

300 mm Hg


12

Properties

Properties

Figure 4 Vapor Pressures of Triethylene Glycol at Various Temperatures


Figure 4: Vapor Pressures of Triethylene Glycolat Various Temperatures

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure3-Constant Equation (Temperature Range = 150 - 300°C)

C°003-051=egnaR7002036.7=AgHmm=P1854.6512=B

C°=T24429.561=CLog 10 (P) = A – B/(T + C)

5-Constant Equation (Temperature Range = 360.15 - 712.51°K)K15.217-51.063=egnaR5025.59=A

aP=P7.43821=BnivleK=T0.0=C

D = -9.6 6752E=3.0015 x 10 -29

N=10ln(P) = A – B/(T + C) + D(ln(T)) + ETN

Temperature, °F220 240 280 320 360 400 440 480 560 640

Vapo

rPre

ssur

e,mm

Hg

1

23468

10

2030406080

100

200300400600800

1000

Temperature, °C100 120 140 160 180 200 240 280 320 360

Triethylene GlycolAntoine Constants A = 7.6302007 B = 2156.4581 C = 165.92442

Log(P) = A–B/(t+C)mm Hg, Log10 , ˚C

12

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure

3-Constant Equation (Temperature Range = 150–300°C)

A = 7 6302007 Range = 150–300°CB = 2156 4581 P = mm HgC = 165 92442 T = °CLog10 (P) = A – B/(T + C)

5-Constant Equation (Temperature Range = 360 15–712 51°K)

A = 95 5205 Range = 360 15–712 51°KB = 12834 7 P = PaC = 0 0 T = KelvinD = -9 66752E = 3 0015 x 10-29

N = 10ln(P) = A – B/(T + C) + D(ln(T)) + ETN

13

Properties

Properties

Figure 5 Vapor Pressures of Aqueous Triethylene Glycol Solutions at Various Temperatures


Figure 5: Vapor Pressures ofAqueous Triethylene Glycol Solutions at Various Temperatures

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure3-Constant Antoine EquationLog 10 (P) = A – B/(T + C)

P = mm Hg, T = °CCBA%tW,GEirT

575.722545.3661991959.70130.822105.1761492229.705732.822363.1861645878.707967.822600.7961670738.708328.922740.8271621627.709722.632752.6081512026.759840.832225.1481943594.779666.042474.1881534404.789997.242411.6291541112.799568.242208.0791989240.75.99375.251898.2202511274.7001

Freezing PointCurves

-40 -20 0 20 40 60 80 100 130 1600.10.20.40.6

1246

10204060

100200400600

1,0002,0004,0006,000

10,000

Temperature, ˚C

Temperature, ˚F

Vapo

r Pre

sure

, mm

Hg

Trie

thyl

ene

Glyc

ol,P

erce

ntby

Wei

ght i

n W

ater

-40 -20 0 20 40 80 120 160 200 240 300

0 5070909597989999.5

100

80

13

TriEG, Wt% A B C0 7 959199 1663 545 227 575

50 7 922294 1671 501 228 03170 7 878546 1681 363 228 23780 7 837076 1697 006 228 76990 7 726126 1728 047 229 82395 7 620215 1806 257 236 22797 7 495349 1841 522 238 04898 7 404435 1881 474 240 66699 7 211145 1926 114 242 79999 5 7 042989 1970 802 242 865

100 7 472115 2022 898 152 573

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure3-Constant Antoine Equation Log10 (P) = A – B/(T + C) P = mm Hg, T = °C

14

Properties

Properties

Figure 6 Specific Gravities of Aqueous Triethylene Glycol Solutions


Figure 6: Specific Gravities of AqueousTriethylene Glycol Solutions

Specific Gravity at T/60°F = A + Bx + Cx 2

x = Weight % Triethylene GlycolCBAF°,T

6-E9002.5-3-E8628.12050.105-6-E4038.4-3-E6647.19130.106-E4978.2-3-E7425.11210.1056-E5594.5-3-E8157.10299.00016-E4883.4-3-E0145.14089.00516-E9805.3-3-E8604.17269.00026-E1997.2-3-E5023.13149.00526-E8480.2-3-E1152.17719.0003

Freezing PointCurves -50˚F

0˚F

50˚F

100˚F

150˚F

200˚F

250˚F

300˚F

0 10 20 30 40 50 60 70 80 90 1000.90

0.92

0.94

0.96

0.98

1.00

1.02

1.04

1.06

1.08

1.10

1.12

1.14

1.16

1.18


Appa

rent

Spe

cific

Gra

vity

, T/6

0˚F

14

T, °F A B C-50 1 0502 1 8268E-3 -5 2009E-6

0 1 0319 1 7466E-3 -4 8304E-650 1 0121 1 5247E-3 -2 8794E-6

100 0 9920 1 7518E-3 -5 4955E-6150 0 9804 1 5410E-3 -4 3884E-6200 0 9627 1 4068E-3 -3 5089E-6250 0 9413 1 3205E-3 -2 7991E-6300 0 9177 1 2511E-3 -2 0848E-6

Specific Gravity at T/60°F = A + Bx + Cx2

x = Weight % Triethylene Glycol

15

Properties

Properties

Figure 7 Viscosities of Aqueous Triethylene Glycol Solutions


Figure 7: Viscosities ofAqueous Triethylene Glycol Solutions

Viscosity, Centiposies (cP) = A x 10 Bx

x = Weight % Triethylene GlycolT, °F A B

2-E7699.201035.102-E8439.100290.1052-E3675.161985.00012-E1843.154073.00512-E1371.117372.00023-E4607.995781.0052

3-E9131.862041.0003


0˚F

50˚F

100˚F

150˚F

200˚F

250˚F

300˚F

0 10 20 30 40 50 60 70 80 90 1000.1

0.2

0.40.6

1

2

46

10

20

4060

100

200

400600

1000


Visc

osity

, Cen

tipoi

ses

15

T, °F A B0 1 53010 2 9967E-2

50 1 09200 1 9348E-2100 0 58916 1 5763E-2150 0 37045 1 3481E-2200 0 27371 1 1731E-2250 0 18759 9 7064E-3300 0 14026 8 1319E-3

Viscosity, Centiposies (cP) = A x 10Bx

x = Weight % Triethylene Glycol

16

Properties

Properties

Figure 8 Specific Heats of Aqueous Triethylene Glycol Solutions


Figure 8: Specific Heats ofAqueous Triethylene Glycol Solutions

Specific Heat = A + BT+CT 2

T = Temperature, °CCBA%tW,GEirT

6-E3419.24-E6827.2-04500.106-E2594.25-E4417.2-50769.0016-E4254.24-E9240.209429.0026-E2596.14-E0003.421088.0036-E4173.14-E6822.692238.0046-E7580.14-E6829.792287.0057-E0000.84-E0004.900227.0067-E0267.43-E1780.188666.0077-E1758.23-E3402.139306.0087-E8409.13-E0082.188835.0098-E0417.5-3-E9293.141684.0001


-50 0 50 100 150 2000.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Temperature, ˚C

Temperature, ˚F

Spec

ific

Heat

, Btu

/lb/˚

F

Trie

thyl

ene

Glyc

ol,P

erce

ntby

Wei

ght i

n W

ater

-40 0 40 80 120 160 200 240 280 320 360

0 102040506070

80

90

100

30

16

TriEG, Wt% A B C0 1 00540 -2 7286E-4 2 9143E-6

10 0 96705 -2 7144E-5 2 4952E-620 0 92490 2 0429E-4 2 4524E-630 0 88012 4 3000E-4 1 6952E-640 0 83229 6 2286E-4 1 3714E-650 0 78229 7 9286E-4 1 0857E-660 0 72200 9 4000E-4 8 0000E-770 0 66688 1 0871E-3 4 7620E-780 0 60393 1 2043E-3 2 8571E-790 0 53888 1 2800E-3 1 9048E-7

100 0 48614 1 3929E-3 -5 7140E-8

Specific Heat = A + BT+CT2

T = Temperature, °C

17

Properties

Properties

Figure 9 Thermal Conductivities of Aqueous Triethylene Glycol Solutions


Figure 9: Thermal Conductivities ofAqueous Triethylene Glycol Solutions

Thermal Conductivity = A + BTT = Temperature, °CTriEG, Wt% A B

4-E7661.776633.004-E0000.600013.0014-E0000.400092.0024-E0000.200272.0035-E3333.333152.0045-E3333.376722.0054-E7666.1-33902.0064-E0000.2-00881.0074-E3338.2-76271.0084-E3338.2-76551.0094-E7661.3-33141.0001


-20 0 20 40 60 80 100 120 140 160 180 2000.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

Temperature, ˚C

Temperature, ˚F

Ther

mal

Con

duct

ivity

, Btu

(ft)/

hr (f

t2 ) ˚F

Trie

thyl

ene

Glyc

ol,P

erce

ntby

Wei

ght i

n W

ater

0 40 80 120 160 200 240 320 360280

0

20

10

40

30

50

60

70

8090100

17

TriEG, Wt% A B0 0 33667 7 1667E-4

10 0 31000 6 0000E-420 0 29000 4 0000E-430 0 27200 2 0000E-440 0 25133 3 3333E-550 0 22767 3 3333E-560 0 20933 -1 6667E-470 0 18800 -2 0000E-480 0 17267 -2 8333E-490 0 15567 -2 8333E-4

100 0 14133 -3 1667E-4

Thermal Conductivity = A + BTT = Temperature, °C

18

Properties

Properties

Figure 10 Dew Points of Aqueous Triethylene Glycol Solutions at Various Contact Temperatures


Figure 10: Dew Points of Aqueous Triethylene Glycol Solutions atVarious Contact Temperatures

Dew or Frost Point = A + BTT = Temperature, °CTriEG, Wt% A B

05010.18030.3-0501610.19000.7-0706110.1547.01-0878189.0329.71-0991039.0252.52-5989558.0576.43-8905108.0914.14-9936237.0591.74-5.99


-30 -20 -10 0 10 20 30 40 50-50

-40

-30

-20

-10

0

10

20

30

40

50

60

Contact Temperatures of Solution, ˚C

Contact Temperatures of Solution, ˚F

Fros

tPoi

nt, ˚

CDe

wPo

int,

˚C

Fros

tPoi

nt, ˚

FDe

wPo

int,

˚F

-20 0 20 40 60 80 100 120

99.599

9895

7050

Triethylene Glycol,Percent by Weightin Water

9080

-50-40-30-20-100102030405060708090100110120130140

18

TriEG, Wt% A B50 -3 0308 1 0105070 -7 0009 1 0161080 -10 745 1 0116090 -17 923 0 9818795 -25 252 0 9301998 -34 675 0 8559899 -41 419 0 8015099 5 -47 195 0 73263

Dew or Frost Point = A + BTT = Temperature, °C

19

Properties

Properties

Figure 11 Comparative Hygroscopicities of Various Glycols at 70°F (21°C)


Figure 11: Comparative Hygroscopicities ofVarious Glycols at 70°F (21°C)

25 30 35 40 45 50 55 60 65 70 755

678

10

60

20

30

40

50

7080

100

Percent Relative Humidity

Perc

entW

ater

(Bas

ed o

n Dr

y Hu

mec

tant

at E

quili

briu

m)

Diethylene Glycol

Ethylene Glycol

Propylene Glycol

Dipropylene Glycol

Triethylene Glycol

19

20

Properties

Properties

Figure 12 Refractive Indices of Pure Triethylene Glycol


Figure 12: Refractive Indices ofPure Triethylene Glycol

Refractive Index = 1.4626 – 0.000340TT = Temperature, °C

20 22 24 26 28 30 32 34 36 38 401.446

1.448

1.450

1.452

1.454

1.456

1.458

1.460

Temperature, ˚C

Reac

tive

Inde

x

20

Refractive Index = 1 4626 – 0 000340TT = Temperature, °C

21

Properties

Properties

Figure 13 Refractive Indices of Aqueous Triethylene Glycol Solutions at 77°F (25°C)


Figure 13: Refractive Indices ofAqueous Triethylene Glycol Solutions at 77°F (25°C)

Refractive Index, 77°F (25°C) = 1.3326 + 0.0012403 xx = Weight % Triethylene Glycol

0 10 20 30 40 50 60 70 80 90 1001.30

1.32

1.34

1.36

1.38

1.40

1.42

1.44

1.46

1.48

1.50


Reac

tive

Inde

x

21

Refractive Index, 77°F (25°C) = 1 3326 + 0 0012403 xx = Weight % Triethylene Glycol

22

Properties

Properties

Figure 14 Surface Tensions of Pure Triethylene Glycol


Figure 14: Surface Tensions ofPure Triethylene Glycol

Surface Tension, dynes/cm = 47.330 – 0.088TT = Temperature, °C

0 50

40 80 120 160 200 240 280

100 15034

36

38

40

42

44

46

Temperature, ˚C

Temperature, ˚F

Surfa

ceTe

nsio

n, d

ynes

/cm

22

Surface Tension, dynes/cm = 47 330 – 0 088TT = Temperature, °C

23

Properties

Properties

Figure 15 Surface Tensions of Aqueous Triethylene Glycol Solutions at 77°F (25°C)


Figure 15: Surface Tensions ofAqueous Triethylene Glycol Solutions at 77°F (25°C)

0 10 20 30 40 50 60 70 80 90 10030

40

50

60

70


Surfa

ceTe

nsio

n, d

ynes

/cm

80

23

24

Properties

Properties

Figure 16 Electrical Conductivities of Aqueous Triethylene Glycol Solutions


Figure 16: Electrical Conductivities ofAqueous Triethylene Glycol Solutions

Note: The quality of water used for dilution can significantly affectelectrical conductivity.

0 10 20 30 40 50 60 70 80 90 1000

2

4

6

8

10

12


Elec

trica

l Con

duct

ivity

, mic

rom

hom

s/cm

24

Note: The quality of the water used for dilution can significantly affectthe electrical conductivity

25

Health EffectsSee our current Material Safety Data Sheet for the most current exposure limits, health, first aid, and toxicology information .

Environmental InformationSee our current Material Safety Data Sheet for current toxicity information .

BiodegradationFor information concerning the biodegrad-ability of triethylene glycol, please refer to the latest Material Safety Data Sheet .

Health and Environmental Information

Health and Environmental Information

26

This information is offered as a guide in planning bulk storage facilities for glycols . Glycols are generally considered to be stable, noncorrosive chemicals with high flash points . Under ordinary conditions, all of these chemicals can be stored in mild steel vessels . For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested . Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration .

It is not general practice to use an inert gas in the vapor space of glycol storage tanks, because all chemicals in this family have high boiling points and the vapors in the tanks are relatively nonflammable . However, if extremely low water content is required, consistent with a long storage period, a nitrogen blanket can be used to exclude atmospheric moisture and air . Blanketing with nitrogen will also minimize low-level oxidation, if necessary for the desired application . The inert gas prevents air oxidation in order to maintain product within acidity specifications . Increased acidity enhances iron pickup from steel vessels . Alternatively, a desiccant unit can be installed on the tank vent line to dry incoming air .

If above-ground outside storage is planned, it may be necessary to install provisions for heating tanks and lines . Many glycols have a

moderately high freezing point or become relatively viscous at severe winter tempera-tures . However, excessive temperature can cause undesirable degradation of glycols . Automatic controls are suggested to limit the temperature of the contents to 120°F (49°C) .

In cold climates, it is generally desirable to make provisions for draining the pump and the transfer lines if they are outside the building . If this is not feasible, it may be necessary to insulate and steam trace or otherwise heat the transfer lines to prevent freezing of the product . Care must be taken in such an application, because continued exposure of glycols to high temperatures, greater than 120°F (49°C), will result in product degradation . Transfer piping of mild steel is generally used .

Shipping DataTriethylene glycol is not regulated by the U .S . Department of Transportation; therefore, it does not have a DOT Shipping Name, Hazard Classification, DOT Warning Label, or Identification Number .

Storage and Handling

Storage and Handling

Weight per Gallon at 20°C 9 36 lb

Coefficient of Expansion at 55°C 0 00072

Flash Point, Pensky-Martens Closed Cup 350°F

Net Contents and Type of Container

1-Gallon Tin Can 9 0 lb

5-Gallon DOT 17E, Pail 47 lb

55-Gallon DOT 17E, Drum 522 lb

Shipping Data For Triethylene Glycol

27

When considering the use of triethylene glycol in any particular application, review and understand our current Material Safety Data Sheet for the necessary safety and health information . For Material Safety Data Sheets and other product safety information on Dow products, contact The Dow Chemical Company sales office nearest you . Before handling any products mentioned in this booklet, you should obtain the available product safety information from the suppliers of those products and take the necessary steps to comply with all precau-tions regarding the use of triethylene glycol .

No chemical should be used as or in a food, drug, medical device, or cosmetic, or in a product process in which it may come in contact with a food, drug, medical device, or cosmetic until the user has determined the

suitability of the use . Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s work-place and disposal practices are in compliance with applicable laws and other governmental enactments .

Dow requests that the customer read, understand, and comply with the informa-tion contained in this publication and the current Material Data Safety Sheet(s) . The customer should furnish the information in this publication to its employees, contrac-tors, and customers, or any other users of the product(s), and request that they do the same .

Product Safety

Product Safety

28

Location Dow Products All Chemical Products

Mainland United States and Puerto Rico

Phone Dow HELP: (800) 822-4357 (toll-free)

Phone CHEMTREC: (800) 424-9300 (toll-free)

Alaska and Hawaii Phone Mainland United States: (800) 822-4357 (toll-free)


Canada Phone Dow: (519) 339-3711 (collect)

Phone CANUTEC: (613) 996-6666 (collect)

Continental Europe, Middle East, North and Central Africa

Phone: +31 115 694982

Phone CHEMTREC (United States):

(703) 527-3887 (collect)

United Kingdom and Ireland

Phone National Chemical Emergency Center (Culham-UK):

44-1553-761-251 (44)(0) 1865-407-333

Phone CHEMTREC (United States):

(703) 527-3887 (collect)

Latin America, Asia/Pacific, South Africa and any other location, worldwide

Phone United States: (800) 822-4357 (toll-free)

Phone CHEMTREC: (703) 527-3887 (collect)

If you are at sea, radio U S Coast Guard, who can directly contact Dow HELP or CHEMTREC

Phone Dow HELP: (800) 822-4357 (toll-free)


Emergency Service

Emergency Service

The Dow Chemical Company maintains an around-the-clock emergency service for its products . The Chemical Manufacturers Association (CHEMTREC), Transportation Canada (CANUTEC), and the Chemical Emergency Agency Service maintain an around-the-clock emergency service for all chemical products .

DO NOT WAIT Phone if in doubt You will be referred to a specialist for advice

29

For additional information, contact our customer service center:

The Dow Chemical Company 2040 Dow Center Midland, MI 48674www dow com Phone: (800) 232-2436

Sales Office

Sales Office

NOTICE: No freedom from any patent owned by Seller or others is to be inferred Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments Seller assumes no obligation or liability for the information in this document NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED

Published February 2007 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow Form No: XXX-0207X CRCG

TEG Properties

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