Corrosives Common corrosive acids  Sulfuric acid – battery acid, drain opener, cleaner  Acetic acid – contained in vinegar  Hydrochloric muriatic acid acid – also called 1a.

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Transcript Corrosives Common corrosive acids  Sulfuric acid – battery acid, drain opener, cleaner  Acetic acid – contained in vinegar  Hydrochloric muriatic acid acid – also called 1a.

Corrosives
Common corrosive acids
 Sulfuric
acid – battery acid,
drain opener, cleaner
 Acetic
acid – contained in
vinegar
 Hydrochloric
muriatic acid
acid – also called
1a
Common corrosive acids

Nitric acid – also an oxidizing agent

Chromic acid


Hydrofluoric acid – a very strong
acid that can be used to etch glass
Corrosive acids you work with
1b
Common corrosive
bases
 Ammonium
hydroxide –
contained in household
ammonia products
 Potassium
 Sodium
hydroxide – potash
hydroxide – lye
1c
Common corrosive
bases
 Calcium
lime
 Sodium
hydroxide – hydrated
carbonate – soda ash
 Corrosive
bases you work with
1d
Recognizing corrosives
 Corrosives
can be liquids,
powders, pellets, or gases
 Most
odor
have a strong, irritating
2a
Recognizing corrosives
 Read
the label
 Litmus
paper test
2b
Chemistry of corrosives
 Can
be either acids or bases
 Chemically
 Contact
 pH
reactive
with metal
level
3
Health hazards of
corrosives
 Explained
in MSDSs
 Chemical
burns to skin and the
mucus membranes of
your eyes, nose,
mouth, and
respiratory tract
4a
Health hazards of
corrosives
 Respiratory
ailments due to a
build up of fluid in the lungs
 Poisoning,
many
corrosives are toxic
4b
Physical hazards of
corrosives
 Explained
in MSDSs
 Reactive
with many materials.
Many react with water
 Combustible
or
flammable, can easily
ignite and burn
5
Engineering controls
 Ventilation
 Chemical
systems
transfer equipment
6a
Personal protective
equipment (PPE)
 See
MSDSs for PPE
recommendations
 You
must be
trained in use
and demonstrate
understanding
7
Safe work procedures

Refer to MSDS for handling
information

Take fire prevention precautions

Remove all jewelry

Use only the amount you need
8a
Safe work procedures
 Dispense
a time
from one container at
 When
mixing, always add the
corrosive to the water
 Be
cautious about skin contact
8b
Safe storage procedures
 Refer
to MSDS for storage
information
 Store
in original container
9a
Safe storage procedures
 Storage
areas should be wellventilated
 Inspect
containers for damage
prior to use
9b
Proper clean-up and
disposal procedures
 Report
all leaks and spills
 Follow
all instructions
10a
Proper clean-up and
disposal procedures
 Collect
waste corrosives in
proper containers
 Refer
to MSDS for
clean-up and
disposal information
10b
Proper first aid and
emergency procedures
 Refer
to MSDS for first aid and
emergency information
 Workers
overexposed to
corrosives must be
removed to an area
with fresh air
11a
Proper first aid and
emergency procedures
 In
case of direct contact flush
the affected area with plenty of
clean water for at least 15
minutes
 Medical
attention
may be necessary
11b