Hazard Symbols - Key Concepts

Question 1

Name the six hazard symbols

Answer 1

Oxidising
Harmful
Toxic
Environmental Hazard
Corrosive
Highly Flammable

Question 2

What does oxidising mean as a hazard symbol?

Answer 2

Supplies oxygen so can make materials burn more vigorously

Question 3

What does flammable mean as a hazard symbol?

Answer 3

Catches fire easily

Question 4

What does Environmental Hazard mean as a hazard symbol?

Answer 4

Harmful to organisms (especially aquatic life) and the environment

Question 5

What does toxic mean as a hazard symbol?

Answer 5

Can cause death e.g. if inhaled, swallowed or absorbed through the skin

Question 6

What does corrosive mean as a hazard symbol?

Answer 6

Destroys materials including living tissues (e.g skin or eyes)
(can also corrode metal)

Question 7

What does harmful mean as a hazard symbol?

Answer 7

Causes skin irritation

Question 8

Give an example of a corrosive chemical

Answer 8

Concentrated acids or alkalis
Concentrated HCl

Question 9

Give an example of a flammable chemical

Answer 9

Ethanol
Petrol

Question 10

Give an example of an oxidising chemical

Answer 10

Liquid oxygen

Question 11

Give an example of a toxic chemical

Answer 11

Hydrogen cyanide

Question 12

Give an example of a harmful chemical

Answer 12

Dilute acids or alkalis
Domestic Bleach (a dilute alkali)

Question 13

Give an example of a chemical which is an environmental hazard

Answer 13

Mercury