Molekula
Sodium nitrite
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium nitrite (NaNO2, CAS 7632-00-0) is a versatile inorganic compound primarily used as a preservative in cured meats to prevent bacterial growth, as a corrosion inhibitor in industrial processes, and in laboratory settings for analytical chemistry. It is also employed in metallurgy for heat treatment of metals and as a reagent in organic synthesis. This white to yellowish crystalline powder has a molecular weight of 69.00 g/mol and is stored at ambient temperatures. It carries a **Danger** signal word due to its toxicity and environmental hazards. Molekula supplies sodium nitrite from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — $58.70 per pack
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Pale cream crystalline powder |
| Melting Point | 271 °C |
| Identification | Conforms to reference |
| Assay | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 (6.1) |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, orthorhombic crystals |
| Melting Point | 271 °C |
| Boiling Point | 115 °C at 760 mmHg |
| Solubility (other solvents) | Sol in water; moderately sol in methanol; sparingly soluble in diethyl ether |
Source: PubChem CID 23668193 (HSDB, CAMEO Chemicals)
Identification
| Property | Value |
|---|---|
| SKU | 22687979 |
| CAS Number | 7632-00-0 |
| IUPAC Name | sodium nitrite |
| EC Number | 231-555-9 |
| Molecular Formula | NaNO2 |
| Molecular Weight | 69.00 |
| Exact Mass | 68.9827 |
| SMILES | N(=O)[O-].[Na+] |
| InChIKey | LPXPTNMVRIOKMN-UHFFFAOYSA-M |
| InChI | InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 |
| PubChem CID | 23668193 |
| UN Number | UN1500 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2834101000 |
| Tariff Code | 2834100000 |
Safety & GHS
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Oxidizing
GHS03
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Toxic
GHS06
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Hazardous to the Environment
GHS09
Hazard statements
- H272 May intensify fire; oxidizer
- H301 Toxic if swallowed
- H319 Causes serious eye irritation
- H370 Causes damage to organs
- H400 Very toxic to aquatic life
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P220 Keep/Store away from clothing/combustible materials
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Anti-rust
- Azotyn sodowy
- Erinitrit
- Filmerine
- Natrium nitrit
- Natrum nitrosum
- Nitrite de sodium
- Nitrite, sodium
- Nitrito sodico
- Nitrous acid, sodium salt
Frequently asked questions
What is sodium nitrite commonly used for?
Sodium nitrite (NaNO₂) is primarily used as a preservative in cured meats (e.g., bacon, ham) to prevent bacterial growth and maintain color, as well as in industrial processes like metal corrosion inhibition and dye manufacturing.
What is the molecular formula and molecular weight of sodium nitrite?
The molecular formula is **NaNO₂**, and the molecular weight is **69.00 g/mol**.
What safety classification does sodium nitrite fall under?
Sodium nitrite is classified with the **Signal Word: Danger** due to its acute toxicity and potential health hazards if ingested or inhaled.
How should sodium nitrite be stored?
Store sodium nitrite in a **cool, dry place at ambient temperature**, away from moisture, incompatible substances (e.g., acids, oxidizing agents), and ensure proper ventilation.
Can Molekula supply sodium nitrite in bulk quantities?
Yes, Molekula can provide sodium nitrite in **bulk quantities** tailored to your production needs, subject to regulatory and safety compliance requirements.
What documentation is provided with a sodium nitrite order?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **Material Safety Information** to ensure compliance with handling, storage, and regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.