Calcium cyanamide is a calcium salt of cyanic acid amide ( cyanamide ) with the formula CaCN 2 .
| Calcium cyanamide | |
|---|---|
 | |
| Are common | |
| Systematic name | Calcium cyanamide |
| Chem. formula | CaCN 2 |
| Physical properties | |
| condition | Colorless crystals |
| Molar mass | 80.10 g / mol |
| Density | 2.29 g / cm³ |
| Thermal properties | |
| T. melt. | 1340 ° C |
| Steam pressure | |
| Classification | |
| Reg. CAS number | 156-62-7 |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| Reg. EC number | 205-861-8 |
| RTECS | GS6000000 |
| Chebi | |
| UN number | |
| ChemSpider | |
Content
Getting
For the synthesis of calcium cyanamide, calcium carbide is sintered with carbon in a nitrogen atmosphere [2] :
Properties
Technical calcium cyanamide - colorless crystals that do not decompose in dry air. Contains approximately 20% bound nitrogen . Actually, for the sake of binding atmospheric nitrogen, this substance is obtained. Further, for example, ammonia can be obtained by heating calcium cyanamide with water :
Application
As a component of phytotoxic weapons and nitrogen fertilizer [3] .
Notes
- ↑ http://www.cdc.gov/niosh/npg/npgd0091.html
- ↑ Inorganic chemistry / Yu. D. Tretyakov / 2 volume, 2nd edition
- ↑ The use of calcium cyanamide as a nitrogen fertilizer "Agrochemistry in agriculture
Literature
- Ter-Gazaryan G.G. Fixation of atmospheric nitrogen. - State Planning Commission of the ZSFSR, 1926