Sodium Nitrite
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Product: Sodium Nitrite
High Quality
Earliest Shipment
Competitive price
Professional Service
Sodium nitrite, with chemical formula NaNO2, is used as a color fixative and preservative in meats and fish. When pure, it is a white to slight yellowish crystalline powder. It is very soluble in water and is hygroscopic. It is also slowly oxidized by oxygen in the air to sodium nitrate, NaNO3.
Sodium nitrite is also used in the manufacture of diazo dyes, nitroso compounds, and other organic compounds; in dyeing and printing textile fabrics and bleaching fibers; in photography; as a laboratory reagent; in metal coatings for phosphatizing and detinning; and in the manufacture of rubber chemicals. It may also be used as an electrolyte in electrochemical grinding manufacturing processes, typically diluted to about 10% concentration in water. Sodium nitrite also has been used in human and veterinary medicine as a vasodilator, a bronchodilator, and an antidote for cyanide poisoning.
| CAS number | 7632-00-0 Y |
| PubChem | 24269 |
| ChemSpider | 22689 Y |
| UNII | M0KG633D4F Y |
| EC number | 231-555-9 |
| UN number | 1500 |
| ChEMBL | CHEMBL93268 Y |
| RTECS number | RA1225000 |
| ATC code | V03AB08 |
| Jmol-3D images | Image 1 |
| [show]N(=O)[O-].[Na+] | |
| [show]InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 Y Key: LPXPTNMVRIOKMN-UHFFFAOYSA-M Y InChI=1/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 Key: LPXPTNMVRIOKMN-REWHXWOFAO | |
| Molecular formula | NaNO2 |
| Molar mass | 68.9953 g/mol |
| Appearance | white or slightly yellowish solid |
| Density | 2.168 g/cm3 |
| Melting point | 271 °C decomp. |
| Solubility in water | 82 g/100 ml (20 °C) |
| Crystal structure | Trigonal |
| MSDS | External MSDS |
| EU Index | 007-010-00-4 |
| EU classification | Oxidant (O) Toxic (T) Dangerous for the environment (N) |
| R-phrases | R8, R25, R50 |
| S-phrases | (S1/2), S45, S61 |
| NFPA 704 | 031OX |
| Autoignition temperature | 489 °C |
| LD50 | 180 mg/kg (rats, oral) |
| Other anions | Lithium nitrite Sodium nitrate |
| Other cations | Potassium nitrite Ammonium nitrite |
