Biuret
| Names | |
|---|---|
| Preferred IUPAC name
2-Imidodicarbonic diamide | |
Other names
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| Identifiers | |
3D model (JSmol) |
|
| 1703510 | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.003.236 |
| EC Number |
|
| 49702 | |
| KEGG | |
| MeSH | Biuret |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| HN(CONH2)2 | |
| Molar mass | 103.081 g·mol−1 |
| Appearance | White crystals |
| Odor | Odourless |
| Density | 1.467 g/cm3 |
| Melting point | 190 °C (decomposes) |
| Thermochemistry | |
Heat capacity (C) |
131.3 J/(mol·K) |
Std molar entropy (S⦵298) |
146.1 J/(mol·K) |
Std enthalpy of formation (ΔfH⦵298) |
(−565.8) – (−561.6) kJ/mol |
Std enthalpy of combustion (ΔcH⦵298) |
(−940.1) – (−935.9) kJ/mol |
| Hazards | |
| GHS labelling: | |
| Warning | |
| H315, H319, H335 | |
| P261, P305+P351+P338 | |
| Related compounds | |
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Biuret (/ˈbjurɛt/ BYUR-ret) is a chemical compound with the chemical formula HN(CONH2)2. It is a white solid that is soluble in hot water. A variety of organic derivatives are known. The term "biuret" also describes a family of organic compounds with the chemical formula R1R2N−C(=O)−N(R3)−C(=O)−NR4R5, where R1, R2, R3, R4 and R5 are hydrogen, organyl or other groups. Also known as carbamylurea, it results from the condensation of two equivalents of urea. It is a common undesirable impurity in urea-based fertilizers, as biuret is toxic to plants.