ChloropreneChloropreneRichard RočekRichard Roček

Jiří ŠvecJiří Švec

ChloroprenChloroprenee – General information – General information

FormulasFormulas:: Summar:Summar: CC44HH55ClCl Functional: CHFunctional: CH22=CCl-CH=CH=CCl-CH=CH22

SStructuraltructural::

NamesNames 2-Chloro-1,3-butadiene2-Chloro-1,3-butadiene ChloropreneChloroprene NeopreneNeoprene

Iternational Iternational notationnotation:: CAS Registry Number: CAS Registry Number: 126-99-8126-99-8 EC Registry Number: EC Registry Number: 204-818-0204-818-0

Chemical properitiesChemical properities ProperitiesProperities

Molecular Formula Molecular Formula of monomer of monomer = C= C44HH55ClCl

Formula Weight = 88.5355Formula Weight = 88.5355 Composition Composition = C (54.26%) H (5.69%) Cl(40.04%)= C (54.26%) H (5.69%) Cl(40.04%) Molar Volume = 95.9 ± 3.0 cm3Molar Volume = 95.9 ± 3.0 cm3

Industrial productionIndustrial production

PolymerizationPolymerization

Physical properitiesPhysical properities

Properities of pure compoundProperities of pure compound DensityDensity 0.9598 g/cm3, 0.9598 g/cm3, Solubility in water: insoluble. 0.2115 g/100 mLSolubility in water: insoluble. 0.2115 g/100 mL Melting point:Melting point: -130°C -202 F -130°C -202 F Boiling point:Boiling point: 59.4°C 138 F 332.6 K59.4°C 138 F 332.6 K ColoColouurless liquid with ether-like smellrless liquid with ether-like smell

Properities of polymerProperities of polymer Good mechanicalGood mechanical and chemical and chemical endurance endurance High endurance against ozon and waterHigh endurance against ozon and water Low flammabilityLow flammability Adhesive with many materialsAdhesive with many materials

Endurance - odolnostEndurance - odolnost

Spectral analysisSpectral analysis

Toxicological characteristicsToxicological characteristics Exposure limitsExposure limits

OSHA GENERAL INDUSTRY PEL: OSHA GENERAL INDUSTRY PEL: 25 ppm, 90 mg/m325 ppm, 90 mg/m3 (Skin)(Skin)

OSHA CONSTRUCTION INDUSTRY PEL: OSHA CONSTRUCTION INDUSTRY PEL: 25 ppm, 90 mg/m3 25 ppm, 90 mg/m3

TWA (Skin)TWA (Skin) ACGIH TLV: ACGIH TLV: 10 ppm, 36 mg/m3 TWA (Skin)10 ppm, 36 mg/m3 TWA (Skin) NIOSH REL: NIOSH REL: 1 ppm Ceiling, Potential Carcinogen1 ppm Ceiling, Potential Carcinogen

Health factorsHealth factors IARC: IARC: Group 3, not classifiable as to its Group 3, not classifiable as to its

carcinogenicity to humanscarcinogenicity to humans SYMPTOM(s): SYMPTOM(s): Eye, respiratory system irritation; Eye, respiratory system irritation;

nervousness,nervousness, irritability;irritability; dermatitis, dermatitis, alopecia; [carcinogenic]alopecia; [carcinogenic]

HEALTH EFFECTS:HEALTH EFFECTS: Reproductive Hazard (HE5); SystemicReproductive Hazard (HE5); Systemic Toxicity (HE3)Toxicity (HE3),,Mutagen (HE2)Mutagen (HE2)

ORGAN: ORGAN: system, skin, eyessystem, skin, eyes

Use of ChloropreneUse of ChloropreneThe best known are propably wetsuitsThe best known are propably wetsuits for for

diving or water sports generaly, diving or water sports generaly,

which arewhich are made of neoprene made of neoprene

(polymerized chloroprene).(polymerized chloroprene).

wetsuit- neoprén, oblek na vodní sportywetsuit- neoprén, oblek na vodní sporty

Use of neopreneUse of neopreneBecouse of its high mechanical and chemical endurance Becouse of its high mechanical and chemical endurance lot of common things are made of neoprene. Such as gaskets,lot of common things are made of neoprene. Such as gaskets,corrosion-resistant coatings,corrosion-resistant coatings, electrical insulation, electrical insulation, hoses and very hoses and veryimportant are alsoimportant are alsovarious medical utilitiesvarious medical utilities

Gasket –těsnění; coatings – nátěry, povrchy; Gasket –těsnění; coatings – nátěry, povrchy; electrical insulation – izolace electrical insulation – izolace elektrických vodičů; hose - hadiceelektrických vodičů; hose - hadice

Use of chloropreneUse of chloropreneBut chloroprene is also used as a component of various types But chloroprene is also used as a component of various types

of rubbers and modern materials. From mousepads to hi-techof rubbers and modern materials. From mousepads to hi-tech

surfaces of military stealth airplanes, witch „hides“ planes bysurfaces of military stealth airplanes, witch „hides“ planes by

reflecting radar wavesreflecting radar waves

Surface – povrch;Stealth – tajný,skrytýSurface – povrch;Stealth – tajný,skrytý

Thanks for your attentionThanks for your attention