SODIUM NITRITE- ▸ Meat curing: Color fixative and preservative in cured meats and fish.
- ▸ Corrosion inhibitor: Anti-corrosion additive in greases and heat-transfer salts.
- ▸ Diazotization: Reagent for diazo dyes and nitroso compounds.
- ▸ Metal finishing: Intermediate in metal treatment and phosphating.
- ▸ Textiles: Color fixative in dyeing and printing.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Sodium nitrite (CAS 7632-00-0) is an inorganic nitrite salt. HSDB documents its use as a color fixative and preservative in cured meats and fish, as a corrosion inhibitor in multipurpose greases and heat-transfer salts, in textile dyeing and printing, and in metal treatment and finishing. It is consumed in large volumes for diazotization and the synthesis of nitroso compounds.
Frequently Asked Questions
What is sodium nitrite commonly used for?
Sodium nitrite (CAS 7632-00-0) is an inorganic nitrite salt used as a color fixative and preservative in cured meats and fish, as a corrosion inhibitor in greases and heat-transfer salts, as a diazotization reagent for diazo dyes and nitroso compounds, in metal treatment and phosphating, and as a color fixative in textile dyeing and printing. RawSource supplies it for food processing, corrosion control, and chemical synthesis.
Is sodium nitrite just salt?
No. Sodium nitrite (NaNO2) is a distinct inorganic compound from table salt, which is sodium chloride (NaCl); nitrite contains nitrogen and oxygen rather than chlorine and acts as a reactive oxidizer and curing agent. They are chemically different with different CAS numbers and uses. Confirm identity by CAS (7632-00-0) on the CoA.
What does the 'Gr FCC' grade designation mean for sodium nitrite?
FCC indicates the material meets Food Chemicals Codex purity and identity specifications, the standard reference for food-grade chemicals; 'Gr' denotes the granular/grade form. This grade is intended for food-processing applications such as meat curing. Request the CoA to confirm the material meets FCC specifications for your use.
What is the molecular formula and CAS number for sodium nitrite?
Sodium nitrite is NaNO2 (NNaO2), CAS 7632-00-0. RawSource provides a CoA confirming assay, grade, and specifications for each lot.
How is sodium nitrite shipped and packaged in bulk?
Sodium nitrite is assigned UN 1500 (oxidizing solid) for transport; DOT/IMDG shipping must follow the requirements for that hazard class, and RawSource ships in compliant packaging with the SDS. It is supplied in bags, drums, and bulk. Contact us with your grade and volume for a bulk quote, CoA, and SDS.