Calcium cyanamide
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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]
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Calcium cyanamide | |
Other names
Cyanamide calcium salt, Calcium carbondiamide, Lime Nitrogen, UN 1403, Nitrolime | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider |
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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: | |
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) |
none[2] |
REL (Recommended) |
TWA 0.5 mg/m3 |
IDLH (Immediate danger) |
N.D.[2] |
Safety data sheet (SDS) | ICSC 1639 |
Related compounds | |
Related compounds |
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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