What are the Labelling Requirements for Consumer Products in 2017?
WHMIS 2015 covers a wide range of hazardous chemicals and substances (called “controlled products”), including everyday chemical products found in workplaces, such as cleaning supplies, adhesives and solvents. Continue reading
What is the Globally Harmonized System (GHS)?
According to the Canadian Centre for Occupational Health and Safety, GHS stands for the Globally Harmonized System of Classification and Labelling of Chemicals. Continue reading
Elephant Toothpaste is a popular demonstration to introduce the concept of decomposition reactions. The chemical reaction involved is the decomposition of hydrogen peroxide into oxygen gas and water. The reaction is very slow at room temperature. Consequently, it requires a catalyst. Manganese dioxide is commonly used to catalyse the reaction. However, bakers yeast works just as well, is easier to clean-up and is non-toxic. The key ingredient for this demo is hydrogen peroxide which is readily available in 6% and 30% solutions. How can you tell whether or not these chemicals are safe to use? Fortunately, most chemicals used in schools come with a HMIS hazard rating. Continue reading