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T: +86-13780319169
Fu Yang North Road, Yun He District, Cang Zhou City, Hebei Province, China.
 |
| Quantity: | |
|---|---|
98% 97% 96% 93%
28321000
| Term | Quality Index | |
| Industry Grade | Food Grade | |
| Purity ( As Na2SO3) | 96.0% min | 98.0% min |
| Sodium sulphate ( SO4) | 2.5% max | 1.5% max |
| Chlorides ( As NaCL) | 0.5% max | 0.1% max |
| Arsenic ( As ) | - | 0.0002% max |
| Heavy metals ( As Pb ) | - | 0.0005% max |
| Iron (Fe) | 0.005% max | 0.002% max |
| Water insolubles | 0.05% max | 0.02% max |
Applications
Sodium Sulfite (Na2SO3) is an antioxidant, the application ranges include:
------Paper industry (semi-chemical pulp)
------Reducing agent (dyes)
------Water treatment
------Photographic developer
------Food preservative and antioxidant
------Textile bleaching (antichlor)
