Description:
Sodium Metabisulfite is white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is1.4, easy to dissolve in water and glycerin, water solution. It has acidity, andits solubility will become large while raising the temperature and is less to dissolve in ethanol.
Applications:
1. Dye printing mordant.
2. Textil eantichlor after being bleached.
3. Reducing agent and sulfonating agent for chemical and medical use.
4. Bamboo, wood,paper fiber bleaching agent, non-ferrous metal ore dressing agent, waste watertreating, rubber freezing agent.
Package and Storage:
Packed in 25kg plastic woven bag, or 1000kg/jumbo bag or as per the buyer's requirement.
The product shall be protected from physical damage. Store in a cool, dry, ventilated area away from sources of heat, moisture and incompatibilities.
Specification:
Items | Specifications Standard : |
Appearance | white or light yellow crystal powder |
Main content (as Na2S2O5) ≥% | ≥96.5 |
Sulfur Dioxide(SO2)% | ≥65 |
Water Insoluble ≤ % | ≤0.05 |
Iron(Fe) ≤ % | ≤0.005 |
PH value: | 4.0-4.8 |
Arsenic(As) ≤ % | ≤0.0001 |