1. Unit 1 – Chemistry WHIMIS – MSDS
Science 1206
Unit 1 – Chemistry
WHIMIS – MSDS

2. WHMIS: What does it mean?
WHIMIS Song
Workplace Hazardous Materials Information System
There are 3 parts to WHMIS:
1. Labels: alert worker to the identity and dangers of the product and to basic safety precautions
2. Material Safety Data Sheets (MSDS): technical documents which provide detailed hazard and precautionary information
3. Education/Training: includes how WHMIS works, hazards of controlled substances, procedures for safe storage, use, and disposal

3. Hazardous Materials: 6 Classes
A. Compressed Gas
B. Flammable & Combustible Material
C. Oxidizing Material
D. Poisonous & Infectious Material (three subclasses)
E. Corrosive Material
F. Dangerously Reactive Material

4. A. Compressed Gas Explosion danger Contents under high pressure.
Cylinder may explode or burst
when heated, dropped or damaged
compressed air, carbon dioxide, propane, oxygen, ethylene oxide, and welding gases

5. B. Flammable & Combustible Material
Potential fire hazard
May catch fire when exposed to heat, spark or flame.
May burst into flame spontaneously.
Hydrogen Methane Propane Benzene Gasoline Turpentine

6. C. Oxidizing Material May burn skin or eyes upon contact
May cause fire or explosion when in contact with wood, fuels or other combustible material.
May burn skin or eyes upon contact
hydrogen peroxide solutions (8% to 27.5% by weight), silver nitrate
 Some chemicals can cause other materials to burn by supplying oxygen. Oxidizers do not usually burn themselves but they will either help the fire by providing more oxygen or they may cause materials that normally do not burn to suddenly catch on fire (spontaneous combustion).

7. D. Poisonous & Infectious Material (three subclasses)
Division 1: Immediate and Serious Toxic Effects
Poisonous substance.
A single exposure may be fatal or cause serious or permanent damage to health.
carbon monoxide, sodium cyanide, sulphuric acid

8. D. Poisonous & Infectious Material (three subclasses)
Division 2: Other Toxic Effects
Poisonous substance that is not immediately dangerous to health.
May cause skin or eye irritation.
Repeated exposure may cause cancer, birth defects, or other permanent damage.
Asbestos fibres, mercury, acetone

9. D. Poisonous & Infectious Material (three subclasses)
Division 3: Biohazardous Infectious Material
 May cause disease or serious illness.
 Drastic exposures may result in death.
AIDS, Hepatitis B, Salmonella, ebolia

10. E. Corrosive Material
Can cause severe eye and skin irritation upon contact
Can cause burns to eyes, skin or
respiratory system
Harmful if inhaled
sulphuric acid, HCl, ammonia

11. F. Dangerously Reactive Material
Very unstable
May react violently causing explosion,
fire or release of toxic gases, when exposed to light, heat, vibration or extreme temperatures
ethyl acrylate, vinyl chloride
Radon, platonium

12. WHMIS Labels Required by WHMIS Laws
Act as a “first alert” to the hazards associated with using a substance
Two main types are Supplier and Workplace Labels

13. Hazard Symbols
Product Identifier
WHIMIS Video
Risk Phrases
Physical Characteristics
Precaution Measures
First Aid
Reference to MSDS
Supplier Identifier

14. What are MSDS for?
MSDS’s are only required for materials that are hazardous
Physical Hazard: evidence that the chemical is a combustible liquid, compressed gas, explosive, flammable, an organic peroxide, an oxidizer, pyrophoric, unstable or water reactive
Health Hazard: evidence shows that the chemical leads to acute or chronic health effects
Includes chemicals which are carcinogens, toxic, irritants, corrosives, sensitizers, hepatotoxins, nephrotoxins, neurotoxins, agents which damage the lungs, skin, eyes or mucous membranes

15. What information is required on a Material Safety Data Sheet (MSDS)
What information is required on a Material Safety Data Sheet (MSDS)? – 9 Sections
Chemical Identity: Name of the product.
Manufacturer’s Information: Name, address, phone number and emergency phone number of the manufacturer.
Hazardous Ingredients/Identity Information: List of hazardous chemicals.
Depending on the state, the list may contain all chemicals even if they are
not hazardous, or only those chemicals which have OSHA standards. Since
chemicals are often known by different names, all common (trade) names
should be listed. The OSHA Permissible Exposure Limit (PEL) for each
hazardous ingredient must be listed.

16. Physical/Chemical Characteristics: Boiling point, vapor pressure and density, melting point, evaporation rate, etc.
Fire and Explosion Hazard Data: Flash point, flammability limits, ways to extinguish, special firefighting procedures, unusual fire and explosion hazards.
Reactivity Data: How certain materials react with others when mixed or stored together.
Health Hazard Data: Health effects (acute= immediate; chronic= long-term), ways the hazard can enter the body (lungs, skin or mouth), symptoms of exposure, emergency and first aid procedures.

17. Precautions of Safe Handling and Use: What to do in case materials spill or leak, how to dispose of waste safely, how to handle and store materials in a safe manner.
Control Measures: Ventilation (local, general, etc.), type of respirator/filter to use, protective gloves, clothing and equipment, etc.

18. MSDS - What is it?
Material Safety Data Sheet
Provides workers and emergency personnel with the proper procedures for handling and working with a particular substance
MSDS’s include: physical data (melting point, boiling point etc), toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment and spill procedures

19. MSDS - Video