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Product Deail
Sodium hydroxide
【Another name】Caustic soda；Pianjian; Grain of alkali.
【Description】White uniform granular or flake solid, delidelizing, density 2.130, melting point 318.4℃, boiling point 1390℃. Easy to absorb water and carbon dioxide in the air, soluble in water, soluble in ethanol and glycerol, insoluble in propanol, ether, disproportionation reaction with chlorine, bromine, iodine and other halogens, neutralization with acids and generate salt and water.
|
Test items |
GR |
AR |
CP |
Other |
|
Assay(NaOH) /% |
≥98.0 |
≥96.0 |
≥95.0 |
Custom |
|
Carbonate(as Na2CO3) /% |
≤1.0 |
≤1.5 |
≤3.0 |
|
|
Clarity of solution |
Passes test |
Passes test |
Passes test |
|
| Chloride(Cl) /% |
≤0.002 |
≤0.005 |
≤0.01 |
|
| Sulfate(SO4) /% |
≤0.002 |
≤0.005 |
≤0.02 |
|
| Total nitrogen(N) /% |
≤0.000 5 |
≤0.001 |
≤0.002 |
|
| Phosphate(PO4) /% |
≤0.000 5 |
≤0.001 |
≤0.002 |
|
|
Silicate(SiO3) /% |
≤0.005 |
≤0.01 |
≤0.05 |
|
|
Magnesium(Mg) /% |
≤0.000 5 |
- |
- |
|
|
Aluminum(Al) /% |
≤0.001 |
≤0.002 |
≤0.005 |
|
|
Potassium(K) /% |
≤0.02 |
≤0.05 |
- |
|
|
Calcium(Ca) /% |
≤0.002 |
≤0.01 |
≤0.05 |
|
| Iron(Fe) /% |
≤0.000 5 |
≤0.001 |
≤0.002 |
|
|
Nickel(Ni) /% |
≤0.001 |
- |
- |
|
|
Zinc(Zn) /% |
≤0.001 |
- |
- |
|
|
Arsenic(As) /% |
≤0.000 1 |
- |
- |
|
|
Heavy metals (as Pb) /% |
≤0.001 |
≤0.003 |
≤0.003 |
【Use】Used for papermaking; Soap; Fuel；Rayon; Smelting metal; Petroleum refining; Cotton finishing; Purification of coal tar products; Food processing; Wood processing; Machinery industry; Preparation of sodium salt; Inorganic synthesis.
