Hyponitrous acid
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Hyponitrous acid is a chemical compound with formula H
2N
2O
2 or HON=NOH. It is an isomer of nitramide, H2N−NO2; and a formal dimer of azanone, HNO.
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
Diazenediol | |||
Systematic IUPAC name
N-(Hydroxyimino)hydroxylamine | |||
Other names
Hyponitrous acid dimer | |||
Identifiers | |||
3D model (JSmol) |
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3DMet | |||
ChEBI | |||
ChemSpider | |||
141300 | |||
KEGG | |||
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |||
H2N2O2 | |||
Molar mass | 62.0282 g/mol | ||
Appearance | white crystals | ||
Conjugate base | Hyponitrite | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
explosive when dry | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hyponitrous acid forms two series of salts, the hyponitrites containing the [ON=NO]2− anion, and the "acid hyponitrites" containing the [HON=NO]− anion.[1]