Introduction
Name: Sodium hydroxide
CAS No: 1310-73-2
Molecular Formula: NaOH
Synonyms: caustic soda
Sodium hydroxide can be used as acid neutralizer, masking agent, precipitant, precipitation masking agent, color developer, saponifying agent, peeling agent and detergent. It has a wide range of uses.
Specifications
Food grade
|
Item |
Specification |
|
NaOH % |
≥ 98.5 |
|
NaCO3 % |
≤ 2 |
|
As % |
≤ 0.0003 |
|
Pb % |
≤ 0.0005 |
|
Hg % |
≤ 0.00001 |
Tech grade
|
Item |
Specification |
|
NaOH % |
≥ 98.5 |
|
NaCO3 % |
≤ 0.45 |
|
NaCl % |
≤ 0.02 |
|
Fe2O3 % |
≤ 0.004 |
Packing: 25kg/bag.
Other specifications and packings of products can be provided as required.
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Application
Sodium hydroxide is used in the chemical industry to produce borax, sodium cyanide, formic acid, oxalic acid, phenol, etc.
- Food-grade sodium hydroxide is used as an acid neutralizer in the food industry, as a peeling agent for oranges and peaches, as a detergent for empty bottles and cans, and as a decolorizer and deodorizer.
- Sodium hydroxide is used in the petroleum industry to refine petroleum products and in oil field drilling muds.
- In addition, sodium hydroxide is also used in the production of alumina, surface treatment of metal zinc and metal copper, as well as glass, enamel, leather, medicine, dyes, paper, pesticides, soap and cosmetics industries.
Chemical & physical properties
|
Molecular formula |
NaOH |
|
Molecular weight |
40.00 |
|
CAS NO |
1310-73-2 |
|
EINECS NO |
215-185-5 |
|
E NO |
E524 |
|
Density |
2.13 g/cm³ |
|
Appearance |
White, hard (when pure), opaque crystals |
|
Melting point |
318.4 ℃ |
|
Water Solubility |
418 g/L (0℃) 1000 g/L (25℃) 3370 g/L (100℃) |
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