Uses, Management and Handling of Apparatus and Chemical Substances (6)

Chemistry

Not quite remember

I easily remember

Methods of disposal of laboratory wastes - Heavy metals and toxic substances (2)

Then, the bag of heavy metals residue is tied carefully and is put into the container of heavy metal waste

Methods of disposal of laboratory wastes - Heavy metals and toxic substances (3)

This type of substances should be discarded and disposed according to standard procedures

Methods of disposal of laboratory wastes - Substances with pH<5 and pH>9 (1)

Substances with a pH value of pH<5 and pH>9 are strong acid and strong alkalis respectively

Methods of disposal of laboratory wastes - Heavy metals and toxic substances (2)

Strong acid and alkali wastes can cause damage to the sink and react with water to release high heat and toxic gases

Methods of disposal of laboratory wastes - Substances with pH<5 and pH>9 (3)

Strong acid and alkali wastes should be kept in closed labelled containers during disposal

Methods of disposal of laboratory wastes - Volatile substances (1)

Substances such as alcohol, ammonia and bromine are volatile, that is easily converted to gas at room temperature

Methods of disposal of laboratory wastes - Volatile substances (2)

Some of the gases produced from volatile substances are hazardous to humans and can be fatal if inhaled in large amounts

Methods of disposal of laboratory wastes - Volatile substances (3)

Volatile wastes should be stored in closed containers and kept away from sun and heat

Emergency management procedure in the laboratory (1)

Inform your teacher or laboratory assistant about the accident immediately

Emergency management procedure in the laboratory (2)

Prohibit others students from entering the accident site

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