Sodium metabisulfite applications
Sodium metabisulfite uses in some different industries in a wide range. Sodium metabisulfite, to remove excess chlorine in drinking water and neutralize cyanides and using in desalinate drinking water systems to clean reverse osmosis membranes. Sodium metabisulfite, to eliminate oxygen in the water and feed water boilers. Sodium metabisulfite using in wastewater treatment and chromic acid neutralization, and for cleaning and bleaching wool, jute yarn and other plant fibers. Sodium metabisulfite in paper making (for bleaching wood paste), Using in photographic and film industries to prepare suitable solvents for acid stabilizing baths. Sodium metabisulfite using in gold precipitation of golden acid (gold soluble in acidic acid) and using as a bleaching agent in the production of coconut cream. Sodium metabisulfite in the food industry as a preservative and prevent spoilage of food, especially in shrimp, fruit juices, vinegar and lemon juice, seafood, dried fruits, corn, beer and so on. Sodium metabisulfite in chemical industry using for reducing agent in purification and separation of aldehydes and ketones (to eliminate bromine-containing wastes). Sodium metabisulfite using in the cosmetics industry as a preservative
Sodium metabisulfite packing
Sodium metabisulfite, powder is packing in 20 kg sacks. For transporting Sodium metabisulfite in safe and sound condition, normally 50 sacks putting on a pallet and shrink.
Sodium metabisulfite export destinations
Sodium metabisulfite, mostly offered by customers who are working in water treatment, paper making, gold mining, food industries and cosmetics. So, we are exporting Sodium metabisulfite to Middle East, African, European, South American, East Asian countries. Our Sodium metabisulfite is producing, packing and exporting to mention above destinations, under Iran Chemical Mine authorization by the best Sodium metabisulfite raw materials in accordance with ASTM standard. For taking updated price for Sodium metabisulfite and knowing more about further details, please contact us by our contact lines/email.
Sodium metabisulfite technical specification
| Item | Property | Units | Technical grade | Food Grade | Photo Grade |
| 1 | Na2SO4 | g/100g | 93.0 (+/- 0.5) | 97.0 (+/- 0.5) | 97.5 (+/- 0.5) |
| 2 | SO2 | g/100g | > 62.6 | > 65.3 | > 65.7 |
| 3 | Na2SO3 | g/100g | – | 0.025 | 0.025 |
| 4 | PH (10% Solution) | – | 4.2-5.2 | 4.5-5.2 | 4.5-5.2 |
| 5 | Chloride | mg/kg | – | 50 | 50 |
| 6 | Heavy Metal as Pb | mg/kg | ≤ 5 | ≤ 1 | ≤ 1 |
| 7 | Heavy Metal (cd,cu,cr,zn) | mg/kg | – | ≤ 1 (each) | ≤ 1 (each) |
| 8 | Iron | mg/kg | ≤ 20 | ≤ 10 | ≤ 10 |
| 9 | Insoluble In Water | mg/kg | – | ≤ 0.05 | ≤ 0.05 |
| Reference: ANSI, ISIRI,ISO 418-1994(E), RCA/Q-066,BASF M,ANSI PH 4.276-1980 | |||||
