Ammonium nitrite represented by the chemical formula NH4NO2 or H4N2O2 <1> that bears the IUPAC name azanium nitrite <4> is a compound containing nitrogen, hydrogen and oxygen that is soluble in water <6>. It is an ammonium salt and an ionic compound <1>.
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Ammonium Nitrite
Ammonium Nitrite Identification | |
| CAS Number | 13446-48-5 <1> |
| PubChem CID | 26004 <1> |
| ChemSpider ID | 24223 <2> |
| EC Number | 236-598-7 <1> |
How to Make it
Ammonium nitrite can be prepared by a reaction between silver nitrite and ammonium chloride that also produces silver chloride <6>.
2AgNO2 + NH4Cl = NH4NO2 + 2AgCl
Nitrous acid also reacts with ammonium hydroxide to produce ammonium nitrite and water <7>.
HNO2 + NH4OH = NH4NO2 + H2O
Properties and Characteristics of Ammonium Nitrite
General Properties | |
| Molar mass/molecular weight | 64.044 g/mol <1> |
Physical Properties | |
| Color/appearance | White-yellowish crystals <5> |
| Odor | Odorless <6> |
| Melting point/freezing point | Decomposes (explodes at 60°C-70°C) <3> |
| Boiling point | N/A <4> |
| Density | 1.69 g cm-3 <3> |
| State of matter at room temperature (normal phase) | Solid <5> |
Chemical Properties | |
| Solubility in water | 64.3 g/100g (at 19.15oC) <5> |
| pH | >7 (basic) <6> |
Ammonium Nitrite Structure
Prominent Reactions
If the concentrated solution of the compound is heated too strongly, it explodes decomposing into nitrogen gas and water <5, 6>.
NH4NO2 = N2 + 2H2O
Ammonium Nitrite Formula
Ammonium Nitrite Uses
As a microbiocide, rodenticide and agricultural pesticide <4>.In making explosives <6>.See more: Da Da Da Da Dadadada Rap Song That Goes Like Duh Duh Da Da Da Da?
Is It Dangerous
The compound is highly toxic to humans and aquatic animals. It can cause an explosion hazard. Heating it can produce toxic fumes of ammonia and nitrogen oxides <4, 6>
Ammonium Nitrite (NH4NO2) Cost
The unstable compound is extremely difficult to find in its pure form and almost none of the major chemical suppliers sell it for commercial purposes <6>.
References:
Limiting Reagent (Reactant)
Brønsted-Lowry Theory
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