8 min read · 2026-02-26
By Rajesh Chauhan, Proprietor, Drashti Chemicals
Supplying industrial chemicals from Vadodara since 2015 — ETP coagulants, RO programs, and process chemicals with batch COA/MSDS.
Expert supply · Est. 2015
Mr Rajesh Chauhan
Founder-led industrial chemical supply from Vadodara — ETP coagulant selection, RO programs, textile and pharma utility chemicals. Batch COA/MSDS on every dispatch. GSTIN 24AGLPC6288M1ZX.
Sodium Metabisulfite: Uses, Properties and Industrial Applications — written for Process chemists and industrial procurement teams. Drashti Chemicals is a Vadodara, Gujarat-based industrial chemical manufacturer and supplier with 150+ products, pan-India delivery and export capability.
This guide targets the keyword "sodium metabisulfite uses" and explains practical considerations for plant operators, procurement teams and technical managers evaluating chemical supply partners in India.
Understanding application chemistry, safe handling and dosing economics helps reduce treatment costs and maintain compliance with pollution control board discharge norms.
Chemical Properties and Handling
Sodium metabisulfite is a white to yellowish crystalline powder with a pungent SO2 odour, soluble in water forming sodium bisulfite solution. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
It acts as a strong reducing agent, releasing sulfur dioxide (SO2) in acidic conditions — handle in ventilated areas with appropriate PPE. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Store in sealed containers away from moisture, oxidisers and acids; decomposition releases SO2 gas which is toxic and corrosive. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Available in technical and food-grade specifications; verify SO2 content and heavy metal limits on COA for your application. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Key Industrial Applications
Water treatment: dechlorination of municipal and industrial water after hypochlorite disinfection before discharge or reuse. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Textile industry: reducing agent in bleaching baths and dye fixation processes; prevents oxidative damage to sensitive fibres. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Food and beverage: preservative and antioxidant in wine, dried fruits and processed foods (within FSSAI limits). For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Photography, leather tanning and chemical synthesis as a reducing and sulfonating agent in intermediate production. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Dosing Guidelines and Supplier Considerations
Dechlorination dose is typically 2–2.5 mg SMB per 1 mg of residual chlorine; over-dosing adds BOD load to receiving water. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Dissolve in water before dosing; undissolved crystals can cause uneven dechlorination and localised corrosion in pipelines. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Monitor pH during dosing — SMB is most effective at pH 6–8; acidic conditions accelerate SO2 release and equipment corrosion. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Source from suppliers with batch traceability, moisture-proof packaging and export documentation for international shipments. For buyers searching "sodium metabisulfite uses" in India, working with a Vadodara-based supplier like Drashti Chemicals ensures documented quality, bulk availability and responsive commercial support.
Industrial buyers across Gujarat, Maharashtra and pan-India choose documented suppliers with batch traceability, flexible packaging from 50 kg minimum orders to tanker loads, and export documentation for Middle East and African markets. Request a quote for delivery timelines and volume-based RFQ support.
Why Source from Drashti Chemicals?
Drashti Chemicals supplies bulk industrial chemicals from Vadodara with COA, MSDS and GST-compliant invoicing. Contact us for samples, technical datasheets and a bulk quote.
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