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Calcium cyanamide
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| Names | |
|---|---|
| IUPAC name
Calcium cyanamide
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| Other names
Cyanamide calcium salt, Calcium carbondiamide, Lime Nitrogen, UN 1403, Nitrolime
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.005.330 |
| EC Number |
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PubChem CID
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| RTECS number |
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| UNII | |
| UN number | 1403 |
CompTox Dashboard (EPA)
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| Properties | |
| CaCN2 | |
| Molar mass | 80.102 g/mol |
| Appearance | White solid (Often gray or black from impurities) |
| Odor | odorless |
| Density | 2.29 g/cm3 |
| Melting point | 1,340 °C (2,440 °F; 1,610 K)[1] |
| Boiling point | 1,150 to 1,200 °C (2,100 to 2,190 °F; 1,420 to 1,470 K) (sublimes) |
| Reacts | |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| H302, H318, H335 | |
| P231+P232, P261, P280, P305+P351+P338 | |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable |
| NIOSH (US health exposure limits): | |
PEL (Permissible)
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none[2] |
REL (Recommended)
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TWA 0.5 mg/m3 |
IDLH (Immediate danger)
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N.D.[2] |
| Safety data sheet (SDS) | ICSC 1639 |
| Related compounds | |
Related compounds
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Cyanamide Calcium carbide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Calcium cyanamide, also known as Calcium carbondiamide, Calcium cyan-2°-amide or Calcium cyanonitride is the inorganic compound with the formula CaCN2. It is the calcium salt of the cyanamide (CN2−
2) anion. This chemical is used as fertilizer[3] and is commercially known as nitrolime. It also has herbicidal activity and in the 1950s was marketed as cyanamid.[4][5] It was first synthesized in 1898 by Adolph Frank and Nikodem Caro (Frank–Caro process).[6]
- ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
- ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0091". National Institute for Occupational Safety and Health (NIOSH).
- ^ Auchmoody, L.R.; Wendel, G.W. (1973). "Effect of calcium cyanamide on growth and nutrition of plan fed yellow-poplar seedlings". Res. Pap. Ne-265. Uppdr Darby, Pa: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 11 P. 265. U.S. Department of Agriculture, Forest Service. Retrieved 2008-07-18.
- ^ Carr, Charles W. (1953). The use of cyanamid for weed control in vegetable crops (MSc thesis). University of Massachusetts Amherst. doi:10.7275/18863820.
- ^ Cite error: The named reference
scherwas invoked but never defined (see the help page). - ^ "History of Degussa: Rich harvest, healthy environment: Calcium cyanamide". Archived from the original on 2006-10-19. Retrieved 2008-07-18.
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