CHEMISTRY LABORATORY

SAFETY ORIENTATION

Eye protection, gloves & lab coats

• Goggles required for all classes• ANSI Z87.1, non vented• Sold by Chem. Office at the beginning of each

quarter• Gloves – provided by the Department for all

classes and research labs• Type: vinyl, non-powdered; for Organic classes:

Nitrile.• Laboratory coats required in all classes and

available in SU Bookstore ( ~$27.00, XL $31.50)

First Aid Kits locations:

• Stockrooms 514 & 609• Quant Lab. 507 (between 507 and 506)• Organic Lab 603• Main Chemistry Office: 516• All research labs

EMERGENCY PROCEDURES• Chemical burns: wash affected body parts with

cold water for 15 minutes; • Exceptions: HF, Na, K, Phosphorous (see CHP

for specific instructions)• Do not attempt to neutralize!!!!• Organic burns – use hand soap to emulsify

organic substance, wash w/water• Eyes: wash w/water for 15 minutes in eye wash

fountain• Evaluate the burns and sent a victim to the

Health Center

CAMPUS HEALTH CENTER:

• Located in Bellarmine Hall• Phone # (206) 296-6300• Open Mon- Fri 7:00-5:00• When closed – go to Swedish, Providence or

Harborview Emergency Departments• Telephone ##: Swedish 386-2573; Providence: 320-2111; Harborview: 731-3074 • Telephones located in the 5-th and 6-th floor

hallways, room BA601and Stockroom BA609

LIFE THREATENNING CONDITIONS

• Difficulty breathing• Major injuries: open wounds, spinal or

neck, obvious fracture..etc.• Unconsciousness or unresponsiveness• SU Emergency line # -5911

EVACUATION ROUTES

• Always use stairs, check reassembly areas assigned to different buildings on campus

• BANNAN in front of the Law School flag pole (picture)

• There will be an “evacuation drill” some times during the school year.

Evacuation assembly area for Bannan building: by the Law School flagpole

Evacuation procedure:• Stop what you are doing and walk, not run, to the

nearest stairwell. Close all doors behind you.• Use the stairs, do not use elevators. If the powers fails,

you may become trapped in the elevator.• Once evacuated, proceed to your designated gathering

area. Do so in an orderly manner, do not panic.• In assembly area report to your instructor/supervisor fr a

headcount.• Do not re-enter the building until the “all clear”

announcement is given by the emergency coordinator.

•

FIRE HAZARD

• Each lab is equipped with ABC extinguisher, located by the door and labeled

• In case of the fire not possible to handle with the extinguisher– activate the fire alarms and evacuate!!

• Fire alarms are located at the opposite sides of each hallway (picture)

Fire alarm next to BA501

INCIDENT/ ACCIDENT REPORTS

• Fill up a “Chemistry Department Incident Report Form” – available in each laboratory. Give one copy to Kasia, keep one. We will archive them on SU Network and eventually use for safety discussion.

• Accidents as: injuries, fires and spills should also be reported to Public Safety.

“Reportable Accidents”

• Each injury, fire and “spill” in the laboratory should be reported to Public Safety Department in order to make an official “Accident Report”

• Call -5990 or –5911• The officers will show up in the lab to fill

out the required forms

CHEMICAL SPILLS

• Immediate action: confine and neutralize if possible to handle.

• Examples of spills which would require evacuation:

• - Bromine> 50 ml and not in the hood -Mercury > 1 thermometer bulb

-Extremely hazardous chemicals > 1 L.Call Public Safety Office at -5911, they will contact

Emergence Response Team to clean up the lab.

WORKING WITH CHEMICALS

ORDERING, INVENTORY & STORAGE

• Monthly PO# ( ask Doris)

• The chemicals will be delivered to the Stockroom, inventoried and delivered to you

• Inventory : bar-coded system by VERTERE• Kasia & Deanna are “administrators” eligible to make

entries/changes• “Read only” copy – available in T drive under “Chemical

and lab inventories”• No password required• To remove used reagents from inventory list: return an

empty bottle with bar-code label to the Stockroom or remove the label and stick on the designated log.

CHEMICAL STORAGE LOCATIONS:

• BA610 – main chemical storage area• BA605&604 under hoods: Corrosive acids and bases• BA603 under hoods: Hexanes, Ethyl Acetate,

Halogenated solvents• Research chemicals: in individual research labs and

BA612/B ( solvent purification room) • BA514 Stockroom: limited amounts of basic chemicals

for lecture demonstrations• Teaching labs: limited amount of chemicals for students’

experiments

Relocation procedures:

• Sign relocations sheet ( on the door of storage areas)

• Needed are: date, bar-code number & new location

• This is to keep the inventory updated

Barcode Number New Location (Room #) Your professor’s name

Chemical Relocation LogPlease add the following information when removing any chemical reagent from this lab.

Please, remove barcodes from empty reagent bottles and stick them here:

CHEMICALS “WATCH LIST”• 1. Reagents (air contaminants) with extremely low (OSHA) PEL-s: • -Acrylamide 0.3 mg/cu meter• -Allyl alcohol 5 mg/ “• -Benzene 1 ppm• -Benzyl chloride 5 mg• -Bromine 0.7 mg• -Carbon tetrachloride 2 ppm• -Chloroform 2 ppm• -Chromic acid 0.05 mg• -Formic acid 10 mg• -HCl 5 ppm• -Hydrogen Sulfide 10 ppm• -Iodine 1 ppm• -Mecury 0.05 mg

Links to full OSHA lists (Table Z-1 & Z-2)of PEL-s & STEL-s

• http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9992

• http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9993

http

2. Extremely flammable reagents:(low Flash /boiling point & wide LEL-UEL)

• NFPA Group 1A: -Acetaldehyde-Diethyl ether-Pentane

• NFPA Group 1B:-Acetone-Benzene-Carbon Disulfide-Cyclohexane-Ethanol-Ethyl Acetate-Heptane-Hexane-Methanol-Methyl Ethyl Ketone-Toluene

TOXIC Chemical Reagents• LD50 (LC50) – experimental value, lowest dose

which kills 50% population of tested animals (rats, mice, guinea pigs…) – always indicated what animal and the route of exposure

• LDLo – lowest published lethal dose (humans too)

• Conversion factors for human doses:Rat x 0.142Mose x 0.066Guinea pigs x 0.179

Classes of Toxic ChemicalsRating Oral LD50 (rat)

mg/kg bodyProbable lethal dose for Man

1. Extremely T. 1 1 grain ( drop)

2.Highly T. 1-50 4 ml ( 1 tsp.)

3.Moderately T. 50-500 30 ml ( 1 fl.oz.)

4. Slightly T. 500-5,000 600 ml

5. Practically Non-Toxic

5,000-15,000 1 L

6. Relatively harmless

>15,000

Finding Toxicity Data:

• www.hazard.com • Go to: (SIRI) MSDS Index• Go to: Chemical Toxicity Data• Use chemical name or CAS#• Look for LD50/LC50…etc

Our List: (LD50/oral /rat/ mg/kg body)

HgCl2 1 mgKCN 5 mgNaCN 6.4 mgHCN 10 mgHgI2 18 mgHgO 18 mgSodium Azide 27 mgMercury 29 mgHgBr2 40 mgNaAsO2 41 mg

Mercury Thiocyanate 46 mgMercuric Sulfate 57 mgHydrazine 60 mgLead Acetate 71 mgChromium trioxide 80 mgCobalt Chloride 80 mgCadmium Iodide 81 mgChromium Sulfate 85 mgCadmium Chloride 88 mgLead Nitrate 93 mg

SU Chemical Hygiene Plan

- SU web site: Facilities administration/EHS/Environmental Programs

- “T” drive ( .pdf file), CHP folder- Chemistry web site/safety

Other links:

• ACS Chemical safety committee web site:• http://portal.acs.org/portal/acs/corg/content?

_nfpb=true&_pageLabel=PP_TRANSITIONMAIN&node_id=2228&use_sec=false&sec_url_var=region1&__uuid=37910c5e-4cc5-4770-8c9d-bd0e411addca

• Take Safety Quiz!!! (120 question that could save your life)

Lab safety elements in SU Chemistry courses:

• Initial General Chemistry trainingIn class discussion, video, in lab activity, Lab safety contract, quiz • CH 131: Labeling activity• CH132: MSDS activity• CH 133: Toxicity/LD50 activity• Organic Chemistry: first lab training, safety

teams and post lab reports

Laboratory ventilation

• To keep the hoods working properly the doors and windows in the labs should be kept closed all the time