Sodium Nitrite in Bulk

Sodium nitrite is the reagent behind diazotisation, which is the first step in making most azo dyes, and it is also one of the most effective corrosion inhibitors available for closed-loop water systems. It is genuinely dangerous if mishandled, being acutely toxic and an oxidiser, so it is supplied for industrial use with clear handling guidance. BulkFineChem supplies technical grade to dye manufacturers, metal treatment plants and distributors across India.

Specification

Assay, nitrate content and chloride are stated on the batch Certificate of Analysis.

• CAS No. 7632-00-0
• HSN Code 28341010
• Assay 98 percent minimum
• Appearance: white to pale yellow crystalline powder, hygroscopic
• Packing: 25 kg and 50 kg HDPE bags with liner

Applications

This listing is technical grade for industrial use. Food curing applications require a separate food grade with different specification and labelling.

• Diazotisation in azo dye and pigment manufacture
• Corrosion inhibitor in closed-loop cooling and heating systems
• Metal phosphating and heat treatment salt baths
• Concrete admixture as an accelerator
• Intermediate in rubber chemical and pharmaceutical synthesis

Safety, Handling and Compliance

Sodium nitrite is acutely toxic by ingestion at small doses and is an oxidiser that will support combustion of organic material.

• Acutely toxic if swallowed; keep strictly segregated and clearly labelled
• Never store or transport with organic material, fuels or ammonium salts
• Contact with acid releases toxic nitrogen oxides
• Store sealed and dry; the powder is hygroscopic
• SDS issued on request

Ordering

Pricing is quoted against assay, packing and delivery location. Send an enquiry with your application and tonnage.

• Minimum order quantity 500 kg
• GST tax invoice on every order
• Batch-wise Certificate of Analysis with each dispatch
• TDS and SDS available on request
• Transport by approved oxidiser carrier with TREM card

FAQs

Questions buyers commonly ask about sodium nitrite.

• Is this food grade? No, this is technical grade; food curing grade is a separate specification.
• Why does nitrate content matter? Nitrate is an impurity that reduces diazotisation yield.
• Why has it caked? It is hygroscopic; keep bags sealed and stored dry.
• Can I get a sample? Yes, trial quantities can be arranged.
• What documents are provided? GST invoice, batch CoA, SDS and TREM card.