Description
Sodium Hydrosulfite 90+% Technical Grade
Mol. Formula
Na2S2O4
Molecular wt
174.11
Application
Textile dyeing,reduction cleaning and etc.
Properties: The bulk specific weight is 0.7-1.0g/m3 , dissolve in water, slightly dissolve in ethanol. Give off heat and cause combustion easily. Spontaneous decomposition occurs when the temperature is higher than 85℃, heats up to 190℃cause detonation. Self-ignition point is 250℃.
| Items | Specifications |
|---|---|
| Appearance | Free-Flowing white crystalline powder |
| Chemical Formula | Na2S2O4 |
| Molecular wt | 174 |
| Bulk Density | 0.9 |
| Melting Point | >300°C (Decomposes) |
| Solubility | Soluble in water; insoluble in alcohol and methanol |
| Odour | None or slightly smell of sulfur dioxide |
| Shelf Life | 12 months from the date of packing if stored in a sealed Air-tight container |
| Grades(Contents) | High Purity———-90% Min. |
| Application | i) Strong Reducing Agent. ii) Dyeing, Printing and Stripping of Vat Dyes in Textiles. iii) Bleaching Sugar, Soap, Oils, Minerals Wood Pulp, Ceramics and Chemicals. Synthetic Rubbers. iv) Discoloration of Effluent. |
| Packing | 50 kg net in iron drum with double plastic liners |
| Storage Stability | Keep in closed or covered containers when not in use. Store in cool dry place with adequate ventilation. Do not store near oxidants, acids or combustible materials. |
| Safety Precautions | In case of fire, use sand or use Carbon Dioxide fire extinguisher. Do not use water. |
| Shipping Details | One FCL of 20 Feet can accommodate 21 MT |
| UN No | 1384 |
| IMCO Class | 4.2 |
| IMDG Page | 4262 |
| HS CODE | 2831.101 |
| CAS No. | 7775-14-6 |
| Package Class | II |
| Warning | Flammable! May spontaneously ignite in moist air or upon contact with water |
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