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:
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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:
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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.
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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:
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- 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
Chemical Relocation Log
Please add the following information when removing any chemical reagent from this lab.
Barcode Number
New Location (Room #)
Your professor’s name
Please, remove barcodes from empty
reagent bottles and stick them here:
CHEMICALS “WATCH LIST”
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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
• 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
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 0.142
Mose x 0.066
Guinea pigs x 0.179
Classes of Toxic Chemicals
Rating
Probable lethal
dose for Man
1. Extremely T.
Oral LD50 (rat)
mg/kg body
1
2.Highly T.
1-50
4 ml ( 1 tsp.)
1 grain ( drop)
3.Moderately T. 50-500
30 ml ( 1 fl.oz.)
4. Slightly T.
500-5,000
600 ml
5. Practically
Non-Toxic
6. Relatively
5,000-15,000
1L
>15,000
Finding Toxicity Data:
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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
KCN
NaCN
HCN
HgI2
HgO
Sodium Azide
Mercury
HgBr2
NaAsO2
1 mg
5 mg
6.4 mg
10 mg
18 mg
18 mg
27 mg
29 mg
40 mg
41 mg
Mercury Thiocyanate 46 mg
Mercuric Sulfate
57 mg
Hydrazine
60 mg
Lead Acetate
71 mg
Chromium trioxide 80 mg
Cobalt Chloride
80 mg
Cadmium Iodide
81 mg
Chromium Sulfate
85 mg
Cadmium Chloride 88 mg
Lead 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_TRANSITI
ONMAIN&node_id=2228&use_sec=false&
sec_url_var=region1&__uuid=37910c5e4cc5-4770-8c9d-bd0e411addca
• Take Safety Quiz!!! (120 question that
could save your life)
Lab safety elements in SU
Chemistry courses:
• Initial General Chemistry training
In 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