Lesson 1February 9th, 2010

Locate all safety devices in the room◦ Fire extinguisher◦ Fire Blanket◦ First Aid◦ Eye wash◦ Chemical spill clean up tools◦ Broken glass disposal. ◦ Lab Coats◦ Goggles

When lighting a Bunsen Burner, ensure all long hair and loose clothing is out of the way

When smelling a chemical waft it towards you. DO NOT SMELL it directly

Put broken glass in the designated bin When something is spilled. Notify Mr.

Hoover immediately If something breaks. Notify Mr. Hoover

immediately

Never eat or drink in the lab Wash hands after handling chemicals When performing a lab, always stay

standing, do not sit down. Never leave a Bunsen burner unattended Always use appropriate equipment Always wear safety goggles Never wear open toed shoes in the lab

The Workplace Hazardous Materials Information System (WHMIS) is Canada's national hazard communication standard.

The key elements of the system are cautionary labelling of containers of WHMIS "controlled products", the provision of material safety data sheets (MSDSs) and worker education programs

CLASS A: COMPRESSED GAS This class includes compressed gases,

dissolved gases, and gases liquefied by compression or refrigeration.

CLASS B: FLAMMABLE AND COMBUSTIBLE MATERIAL

This class includes solids, liquids, and gases capable of catching fire in the presence of a spark or open flame under normal working conditions.

CLASS C: OXIDIZING MATERIAL These materials increase the risk of fire if

they come in contact with flammable or combustible materials.

CLASS D: POISONOUS AND INFECTIOUS MATERIALDivision 1: Materials Causing Immediate and Serious Toxic Effects

These materials can cause death or immediate injury when a person is exposed to small amounts. Examples: sodium cyanide, hydrogen sulphide

CLASS D: POISONOUS AND INFECTIOUS MATERIALDivision 2: Materials Causing Other Toxic EFFECTS

These materials can cause life-threatening and serious long-term health problems as well as less severe but immediate reactions in a person who is repeatedly exposed to small amounts.

CLASS D: POISONOUS AND INFECTIOUS MATERIALDivision 3: Biohazardous Infectious MATERIAL

These materials contain harmful micro-organisms that have been classified into Risk Groups 2, 3, and 4 as determined by the World Health Organization (WHO) or the Medical Research Council of Canada.

CLASS E: CORROSIVE MATERIAL This class includes caustic and acid

materials that can destroy the skin or eat through metals. Examples: sodium hydroxide, hydrochloric acid, nitric acid

CLASS F: DANGEROUSLY REACTIVE MATERIAL

These products may self-react dangerously (for example, they may explode) upon standing or when exposed to physical shock or to increased pressure or temperature, or they emit toxic gases when exposed to water.

WHMIS labels include first aid information and details about storage, handling, and disposal. There are two types of WHMIS labels:

- Supplier labels- Workplace labels

Supplier labels are used by the people who make each chemical.

Supplier labels have a strict format. 1. Hashed marked identifier label 2. Written in English and French3. Supplier Name4. Precautionary measures 5. Risk Phrases6. First Aid Treatment7. Name of product8. Hazard Symbols 9. Statement referring to MSDS

After chemicals are rebottled, a workplace label my replace the Supplier label. Workplace labels are allowed to have different formats.

A Workplace label contains less information than the Supplier label, but it still has enough information to help you use the chemical safely.

Requirements◦ Product name◦ Information for safe handling of the product◦ Statement referring to MSDS◦ WHMIS hazard symbols (optional)

Each chemical found in your home has a special purpose. The properties of the chemical determine what it will react with. In general we do not want products in our homes to react with each other.

On the other hand there are products that we do want to react with other materials. These are normally cleaners that contain materials such as bleach and ammonia, which are very reactive chemicals

In order to notify users which chemicals are dangerous and in what ways they are dangerous we use Hazardous Household Product Symbols.

The HHPS has four categories of Hazardous materials as well as three levels of severity.

 flammable  toxic  corrosive  explosive

The HHPS has four categories of Hazardous Chemicals

The symbols are similar to that of WHMIS with the exception of the Explosive symbol.

The HHPS has three levels of severity

Caution is the least sever of the three symbols, warning is more severe and danger is the most severe.

Household chemicals can be categorized according to where they are used: kitchen and bathroom, the garage, the walls, and the garden.

Many cleaners contain substances that dissolve or interact with dirt and grease, but may also contain hazardous chemicals.

There are many environmentally friendly products that are alternatives to the hazardous chemicals.

When using chemicals try to avoid using more than is needed.

Many hazardous solvents are used on automobiles. Proper handling and disposal is essential to avoid contamination of soil and ground water.

Paints and solvents contain hazardous chemicals.

When painting try to use latex water based paints that are low in Volatile Organic Compounds (VOCs)

Recycling unused paint and paint tins

Chemicals used for lawns and gardens include fertilizers and pesticides.

Fertilizers are fine as long as they are used properly. Pesticides on the other hand can be incredibly

poisonous. New regulations were passed last year limit the use of such products to registered users. Fines can be issued to those using the products without legitimate registrations.

Alternatives to chemical pesticides ◦ Predator insects ◦ Insect traps◦ Remove trash and waste from gardens