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| English name |
Sodium hydroxide |
| Alias |
Caustic soda; caustic soda; caustic soda; flake caustic soda; ion-exchange membrane caustic soda; liquid caustic soda; flake caustic soda; granular caustic soda; solid caustic soda; pearl caustic soda; |
| CAS RN |
1310-73-2;8012-01-9 |
| EINECS number |
215-185-5 |
| Molecular formula |
NaOH |
| Molecular weight |
41.0045 |
| Dangerous goods sign |
 C: Corrosive |
| Risk term |
R35 ; |
| Security term |
S24/25 ; S37/39 ; S45 ; |
| Physical and chemical properties |
Property Pure products are colorless and transparent crystals.
Melting point: 318.4°C;
boiling point: 1390°C;
relative density: 2.130;
solubility: easily soluble in water, and strongly exothermic. It is soluble in ethanol and glycerin; insoluble in acetone and ether. When the dew is placed in the air, it will completely dissolve into a solution.
Performance characteristics: The solid body is white, shiny, allowing to be colored, hygroscopic, and easily soluble in water.
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| Uses |
Basic chemical raw materials, used as high-purity reagents, widely used in chemical, metallurgy, papermaking, petroleum, textile and daily chemical industries. Used for making soap, paper, rayon, finishing cotton fabric, refining kerosene |
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