Sodium nitrite

Structure of Sodium Nitrite (CAS NO.7632-00-0):

IUPAC Name: sodium nitrite 
Empirical Formula: NNaO₂
Molecular Weight: 68.9953 
EINECS: 231-555-9 
Melting Point: 271 °C(lit.)
Boiling Point: 320 °C
Density: 1.29 g/mL at 25 °C
Storage temp: 2-8°C
Solubility aqueous acid: 1 - 2μl acetic acid per ml H2Osoluble
Water Solubility: 820 g/L (20 ºC)
Sensitive: Hygroscopic 
Physical Appearance: white to off-white powder
Stability: Stable. Incompatible with reducing agents, strong oxidizing agents, organics and other flammable materials, finely powdered metals. Contact with combustible material may lead to fire. Hygroscopic. 
Product Categories: Sodium nitrile;Inorganics;Water Ttreatment Chemicals;ACS GradeSynthetic Reagents;Essential Chemicals;Routine Reagents;Other AdditivesVolumetric Solutions;Reference Material Potassium permanganateVolumetric Solutions;Allergens;By Reference Material;Cosmetics;S - Z;Salt Solutions;Q-S, Puriss p.a. ACS;Analytical Reagents for General Use;Puriss p.a. ACS;Inorganic Salts;Salts;Sodium Salts;SodiumMetal and Ceramic Science;Synthetic Reagents

 Sodium Nitrite (CAS NO.7632-00-0) is used as a color fixative and preservative in meats and fish. It is also used in manufacturing diazo dyes, nitroso compounds, and other organic compounds; in dyeing and printing textile fabrics and bleaching fibers;  in metal coatings for phosphatizing and detinning; in photography; as a laboratory reagent and a corrosion inhibitor;and in the manufacture of rubber chemicals. Sodium nitrite 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.

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Hazard Codes: O,T,N,Xn
Risk Statements: 8-25-50-22-36/38 
R8 :Contact with combustible material may cause fire. 
R25 :Toxic if swallowed. 
R50:Very toxic to aquatic organisms. 
R22:Harmful if swallowed. 
R36/38:Irritating to eyes and skin.
Safety Statements: 45-61-36-26 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets. 
S36:Wear suitable protective clothing. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 3219 5.1/PG 3
WGK Germany: 3
RTECS: RA1225000
F: 10
HazardClass: 5.1
PackingGroup: III
HS Code: 28341000
Human poison by ingestion. Experimental poison by ingestion, inhalation, subcutaneous, intravenous, and intraperitoneal routes. Human systemic effects by ingestion: motor activity changes, coma, decreased blood pressure with possible pulse rate increase without fall in blood pressure, arteriolar or venous dilation, nausea or vomiting, and blood methemoglobinemia-carboxyhemoglobinemia. Experimental teratogenic and reproductive effects. An eye irritant. Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Human mutation data reported. It may react with organic amines in the body to form carcinogenic nitrosamines.
Flammable; a strong oxidizing agent. In contact with organic matter, will ignite by friction. May explode when heated to over 1000°F or on contact with cyanides, NH₄⁺ salts, cellulose, Li, (K + NH₃), Na₂S₂O₃. Incompatible with aminoguanidine salts, butadiene, phthalic acid, phthalic anhydride, reductants, sodium amide, sodium disulfite, sodium thiocyanate, urea wood. When heated to decomposition it emits toxic fumes of NO_x and Na₂O. See also NITRITES.

DOT Classification:  5.1; Label: Oxidizer

  Sodium Nitrite , its cas register number is 7632-00-0. It also can be called Anti-rust ; Azotyn sodowy ; Diazotizing salts ;
 Dusitan sodny ; Erinitrit ; Filmerine ; Natrium nitrit ; Nitrite de sodium ; Nitrito sodico .