CAS 7632-00-0

Sodium nitrite

亚硝酸钠

NaNO2MW 68.995 g/molHS 283410 UN1500 · Class 5.1 · PG III

From the buying desk

It is an oxidizer and toxic if swallowed, and it ships as Class 5.1 with a toxic subsidiary risk. Food grade for meat curing and industrial grade differ in specification. Some countries control sales because of its misuse, so expect questions about end use.

Import Card

Before you order sodium nitrite from China, see its register listing, the duty, anti dumping cases and a supplier check on one card, each with its source and date.

Card for the US Card for Australia

Identifiers

Synonyms
Nitrous acid sodium salt
Formula
NaNO2
Molecular weight
68.995 g/mol
SMILES
N(=O)[O-].[Na+]
InChIKey
LPXPTNMVRIOKMN-UHFFFAOYSA-M
HS code (6-digit)
283410

Transport and hazard profile

Transport classification, UN number UN1500, IMDG Class 5.1, Packing Group III.

GHS hazard statements, Danger. H-codes, H272, H301, H400. Refer to the substance SDS Section 2 for the full classification.

US and Australian rules for Sodium nitrite

Read from the official lists by CAS 7632-00-0. Screening only: check the source before you ship, store or report.

California Prop 65

No entry

No entry for CAS 7632-00-0 in the OEHHA list dated July 31, 2026.

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OSHA exposure limit

No entry

No entry for CAS 7632-00-0 in 29 CFR 1910.1000 Tables Z-1 to Z-3.

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Australian exposure standard

No entry

No entry for CAS 7632-00-0 in the Safe Work Australia workplace exposure standards.

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CERCLA reportable quantity

Listed

Reportable quantity 100 lb (45.4 kg). A package holding this much needs RQ on the shipping paper.

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EPCRA Tier II threshold

No entry

Not on the Extremely Hazardous Substances list, so the general 10,000 lb Tier II threshold applies where an SDS is required.

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Common applications

  • · Meat curing (food grade)
  • · Dye manufacture
  • · Corrosion inhibitor
  • · Heat transfer salts

Sourcing documentation chain

Every shipment of Sodium nitrite from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

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Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.