Sodium Metabisulphite (SMBS) is a white/creamy chemical which is soluble in water. Its chemical formula is Na2S2O5, an inorganic compound made up of sodium, sulfur and oxygen, and used in many industries such as food, textile, mining, water treatment, construction chemicals and paper.
Specification
| Na2S2O5 | 97% min |
| SO2 | 65% min |
| Water-insoluble Matter | 0.05% max |
| Iron(Fe) | 0.003% max |
| PH value | 4.0-4.6 |
| Arsenic (As) | 0.0002% max |
| Lead (Pb) | 0.001% max |
Application
| Industry | Usages |
| Food | 1. As a preservative in fruits and starch 2.As an enzyme inhibitor in melanin formation (black and brown spots) |
| Textile | 1. For bleaching wool and jute 2. dechlorination agent after cotton bleaching, and scouring auxiliary agent for cotton in the printing and dyeing industry. |
| Paper and pulp | For bleaching ground wood |
| Leather | 1. leather processing– making leather soft, plump and tough, with the water proof, anti-folding and wear-resisting properties 2. as leather processing chemical during the deliming process and helps to prevent formation of toxic hydrogen sulphide gas during deliming. |
| Water treatment | 1. assists in the dechlorination of drinking water as well as in the chlorine removal in waste waters 2. effluent treatment chemicals- used as an oxygen scavenger to eliminate the dissolved oxygen in waste water and in pipes. |
| Photography and film | 1. For developer solutions and acidifying fixing baths 2. as a photographic developing and fixing bath agent |
| Copper/Cobalt/ Gold mining | detoxification of cyanide in gold ore processing plants and in the manufacture of photographic chemicals. |
Package
- 25Kgs/Plastic woven bag
- 1000kgs/Plastic woven bag