Page 8 - Ranger SPM 2022 Chemistry

Chemistry SPM Chapter 1 Introduction to Chemistry
(d) Substances that decompose
easily shall be stored in the
dark.
(e) Heavy metals and toxic
substances shall be kept in
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special labelled bottles and
locked.
Fire extinguisher
4. Disposal of chemicals methods:
(a) Solid waste shall be disposed
Safety into special containers.
Fume chamber shower (b) Flammable and volatile Form 4
hydrocarbons or organic
solvents shall be kept in special
glass bottles before disposal.
Eyewash (c) Hydrogen peroxide shall be
diluted before pouring into the
sink.
(d) Corrosive substances (pH ,
Hand wash
5 or pH . 9) shall be sealed
in labelled containers before
Diagram 1.2 Laboratory safety equipment
disposal.
(e) Heavy metals and toxic
substances shall be tied up in
Quiz plastics and dispose into heavy
Quiz
Quiz
Quiz
What is the personal protective metal containers.
equipment used to protect (f) Substance that is highly
respiratory organs in the volatile like alcohol, ammonia
laboratory? and bromine shall be placed in
an enclosed bottle without light
2. Storage and disposal of chemicals and heat.
in the correct way is important to 5. In case chemical spill occurs in
avoid accident and environmental the laboratory, the following steps
pollution. should be carried out:
3. Storage of chemicals should be (a) Report the accident to a teacher
done according to the types of or a laboratory assistant
substances: immediately.
(a) Reactive substance (Li, Na, K) (b) Restrict pupils to go near the
shall be stored in paraffin oil. spill area.
(b) Flammable and volatile (c) Form a temporarily boundary
hydrocarbons or organic with sands to avoid the spill
solvents shall be kept far from from spreading to other area.
heat or sunlight. (d) Clean the spilled chemicals.
(c) Corrosive substances (pH , 5 or
pH . 9) shall be locked in the (e) Dispose spilled chemicals
to
the
standard
according
cabinet.
operational procedures.
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01.4 RANGER SPM CHEMISTRY 1P.indd 3 29/03/2022 12:05 PM