Category: Water Treatment Industry
Sodium Metabisulfite
An inorganic compound used as a dechlorination agent in water treatment, as a preservative in the food industry, and as a corrosion inhibitor in oil & gas industry.
Overview
Sodium Metabisulfite is a white crystalline powder with the formula 𝑁𝑎2𝑆2𝑂5, primarily used as a reducing agent and preservative.
In the water treatment industry, Sodium Metabisulfite is employed for dechlorination and oxygen scavenging, protecting systems from corrosion and ensuring safe water discharge.
| CAS Number | 7681-57-4 |
| Chemical Formula | 𝑁𝑎2𝑆2𝑂5 |
| Concentrations | Dechlorination: 1.0-3.0 mg/L per mg/L chlorine; Oxygen scavenging in boiler water:20-40 mg/L |
| Quantities |
Industrial Applications
Water Treatment:
- Dechlorination Agent: Neutralizes excess chlorine after disinfection.
- Oxygen scavenger: Reduces oxygen levels to prevent corrosion in boiler systems.
Food Industry
- Preservative & antioxidant: To prevent spoilage and maintaining color.
- Anti-browning agent: To ensure retention of product color and taste during storage and distribution
Photography
- Developer & fixer component: Utilized in developing solutions.
Textiles:
- Bleaching agent: To remove unwanted color from delicate fabric
Oil & Gas
- Corrosion inhibitor: Prevents corrosion in oil extraction and refining processes.
Other Applications
- Intermediate: For production of various chemicals, including pharmaceuticals and dyes.
