Sodium hydroxide physical and chemical specifications
Physical and chemical specifications
Chemical formula: NaOH
The solution is white, dispersed, non-volatile and corrosive
Molecular Weight: 40/01
Melting Point: 12 ° C (50% solution), 62 ° C (solution 73% -70%)
Boiling Point: 140 ° C (50% solution)
The solubility in water: 109 g at 100 ml at 20 ° C
Solubility in other liquids:
In ethanol, Methanol and Glycerol is dissolved.
steam pressure: 5.1 mm mercury at 20 ° C (50% solution)
PH = 12 (solution: 05%), 13 (solution 5%), 14 (solution 5%)
Short-term effects (acute):
- It has a severe corrosive effect on the eyes, skin, respiratory tract and digestive system.
- Inhalation may result in pulmonary edema.
Long-term effects (chronic):
۱- It causes dryness and inflammation of the skin (dermatitis).
- Cancer of the esophagus (caused by digestive disorder)