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Ammonium nitrite

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Name Ammonium nitrite EINECS
CAS No. 13446-48-5 Density g/cm3
Solubility Melting Point
Formula H3N . H N O2 Boiling Point °Cat760mmHg
Molecular Weight 64.04 Flash Point °C
Transport Information Appearance
Safety Powerful oxidizer. See also NITRITES. Severe explosion hazard when shocked or exposed to heat (60-70°). When heated to decomposition it emits toxic fumes of NOx and NH3. Risk Codes
Molecular Structure Molecular Structure of 13446-48-5 (Nitrous acid, ammoniumsalt (1:1)) Hazard Symbols
Synonyms

Ammoniumnitrite (6CI); Nitrous acid, ammonium salt (8CI,9CI); Ammonia compd. withnitrous acid (1:1); Ammonium nitrite (NH4NO2)

 

Chemistry


IUPAC Name: azanium nitrite
Molecular Weight: 64.04396 g/mol
Molecular Formula: H4N2O2
H-Bond Donor: 1
H-Bond Acceptor: 3
Exact Mass: 64.027277
MonoIsotopic Mass: 64.027277
Topological Polar Surface Area: 53.5
Heavy Atom Count: 4
Complexity: 7.5
Canonical SMILES: [NH4+].N(=O)[O-]
InChI: InChI=1S/HNO2.H3N/c2-1-3;/h(H,2,3);1H3
InChIKey: CAMXVZOXBADHNJ-UHFFFAOYSA-N
EINECS: 236-598-7
Product Categories: Inorganics
Mol File: 13446-48-5.mol 
Synonyms of Ammonium nitrite (CAS NO.13446-48-5): Nitrousacid,ammoniumsalt ; Ammonium nitrite, 20% soln

Uses

 Ammonium nitrite (CAS NO.13446-48-5) is used as a rodenticide, microbiocide and agricultural pesticide, and is acutely toxic to both humans and aquatic organisms.

Production

Ammonium nitrite (CAS NO.13446-48-5) forms naturally in the air and can be prepared by the absorption of equal parts nitrogen dioxide and nitric oxide upon aqueous ammonia.It can also be prepared by oxidizing ammonia with ozone or hydrogen peroxide, or in a precipitation reaction of barium or lead nitrite with ammonium sulfate, or silver nitrite with ammonium chloride. The precipitate is filtered off and the solution concentrated. It forms colorless crystals which are soluble in water and decompose on heating or in the presence of acid, with the formation of nitrogen.
NH4NO2 → N2 + 2 H2O

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Powerful oxidizer. See also NITRITES. Severe explosion hazard when shocked or exposed to heat (60-70°). When heated to decomposition it emits toxic fumes of NOx and NH3.

Standards and Recommendations

DOT Classification:  Forbidden

Specification

 Ammonium nitrite (CAS NO.13446-48-5) is a kind of oxidants and it is high toxic. It may explode at a temperature of 60-70 °C.  Ammonium nitrite (CAS NO.13446-48-5) also can be explosive when mixed with reducing agents, sulfur and phosphorus by heat, impact and friction. It also produce toxic fumes of nitrogen oxides and ammonia by heat. So the storage environment should be ventilate, low-temperature and dry. Keep Ammonium nitrite (CAS NO.13446-48-5) separate from organic matter, reducing agents, sulfur, phosphorus and combustible.

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