Sodium
hydroxide
Definition :- A
strongly alkaline compound, NaOH, used in the manufacture of chemicals and
soaps and in petroleum refining. Also called caustic soda, lye.
Definition :- A
white, corrosive, solid compound that absorbs water and carbon dioxide from the
atmosphere and forms lye when in solution. Sodium hydroxide is toxic and
strongly alkaline and is used to make chemicals and soaps and to refine
petroleum. Chemical formula: NaOH.
Physical
and chemical properties
Appearance
:
White , waxy crystals.
Odor
: odorless.
Taste
: .
Molecular
weight : 40.0 g /
mole.
Molecular
formula : NaOH.
Ph
:
Boiling
point : 1388 ° c.
Malting
point : 318 ° c.
Solubility
: water
, methanol , ethanol.
Storage : NaOH should be stored in air-tight plastic
container. The containers should be labeled. Stored away from children pets ,
heat and moisture.
Incompatibilities : NaOH is incompatible with acids , halogen ted
organic compounds , metals and nitomethar.
Medical
and Pharmaceutical Uses :-
1. It is used to neutralize
acid.
2. Used for adjusting the pH of
solution.
3. Make sodium salts.
4. Treat cellos in making
viscose.
5. It is used in the aluminum production.
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