Hazard Symbols - Key Concepts
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Name the six hazard symbols
Oxidising Harmful Toxic Environmental Hazard Corrosive Highly Flammable
What does oxidising mean as a hazard symbol?
Supplies oxygen so can make materials burn more vigorously
What does flammable mean as a hazard symbol?
Catches fire easily
What does Environmental Hazard mean as a hazard symbol?
Harmful to organisms (especially aquatic life) and the environment
What does toxic mean as a hazard symbol?
Can cause death e.g. if inhaled, swallowed or absorbed through the skin
What does corrosive mean as a hazard symbol?
Destroys materials including living tissues (e.g skin or eyes) (can also corrode metal)
What does harmful mean as a hazard symbol?
Causes skin irritation
Give an example of a corrosive chemical
Concentrated acids or alkalis Concentrated HCl
Give an example of a flammable chemical
Ethanol Petrol
Give an example of an oxidising chemical
Liquid oxygen
Give an example of a toxic chemical
Hydrogen cyanide
Give an example of a harmful chemical
Dilute acids or alkalis Domestic Bleach (a dilute alkali)
Give an example of a chemical which is an environmental hazard
Mercury