| CAS No.: | 7757-83-7 |
|---|---|
| Other Names: | Sodium Sulfate Anhydrous |
| MF: | Na2SO3 |
| EINECS No.: | 231-821-4 |
| Place of Origin: | China (Mainland) |
| Grade Standard: | Industrial Grade |
| Purity: | 98% |
| Appearance: | white fine crystal or powder |
| Application: | Film developing, antichlor |
| Brand Name: | Shangyong |
| Model Number: | Superior |
| Molecular weight: | 126.04 |
| Specific Gravity: | 2.633 |
Quick Details
Specifications
Industrial Anhydrous Sodium Sulfate
Molecular formula: Na2SO3 Molecular weight:126.04
Other name: Sodium sulfite CAS No.: 7757-83-7
Character: white fine crystal or powder; odorless, non-toxic. Specific Gravity2.633, easily soluble in water; slightly soluble in alcohol.
Application:
1. Used in Film developing;
2. Used as reducing agent and reducing agent in chemical industry;
3. Used as Antichlor and bleach in dyeing industry;
4. Stabilizer of the chemical fiber;
|
Technical Index |
High purity grade |
Industrial grade |
Food additive |
photographic grade |
|
|
Superior grade |
First grade |
||||
|
Content ≥ % |
98.0 |
97.0 |
96.0 |
96.0 |
97.0 |
|
Iron (Fe)≤ % |
0.003 |
0.003 |
0.005 |
0.002 |
0.002 |
|
Water insoluble≤ % |
0.01 |
0.02 |
0.03 |
0.03 |
0.05 |
|
Free alkali (Na2CO3) ≤ % |
0.001 |
0.1 |
0.4 |
0.6 |
0.15 |
|
Sodium sulfate (Na2SO3) ≤ % |
1.2 |
2.5 |
3.0 |
2.5 |
2.5 |
|
Sodium chloride (NaCl) ≤ % |
0.003 |
0.1 |
0.15 |
0.15 |
0.1 |
|
Heavy metal (As Pb) ≤ % |
0.001 |
0.0015 |
0.002 |
0.002 |
0.002 |
|
Arsenic (As) ≤ % |
0.0001 |
0.0002 |
0.0002 |
0.0002 |
0.0002 |
|
Sodium thiosulfate ≤% |
0.001 |
0.0015 |
0.002 |
0.002 |
0.0015 |
Specification:
Package: 25KG per woven bag or on customer's demands.