Back Kalsiumsianamied Afrikaans سياناميد الكالسيوم Arabic سیانامید کلسیوم AZB Cianamida de calci Catalan Kyanamid vápenatý Czech Calciumcyanamid German Kalcia cianamido Esperanto Cianamida cálcica Spanish کلسیم سیانامید Persian Kalsiumsyanamidi Finnish

Calcium cyanamide

Calcium cyanamide
Names
IUPAC name
Calcium cyanamide
Other names
Cyanamide calcium salt, Calcium carbondiamide, Lime Nitrogen, UN 1403, Nitrolime
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.330 Edit this at Wikidata
EC Number
  • 205-861-8
RTECS number
  • GS6000000
UNII
UN number 1403
  • InChI=1S/CN2.Ca/c2-1-3;/q-2;+2 ☒N
    Key: MYFXBBAEXORJNB-UHFFFAOYSA-N ☒N
  • InChI=1/CN2.Ca/c2-1-3;/q-2;+2
    Key: MYFXBBAEXORJNB-UHFFFAOYAU
  • [Ca+2].[N-2]C#N
  • [Ca+2].[N-]=C=[N-]
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:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H302, H318, H335
P231+P232, P261, P280, P305+P351+P338
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
0
1
W
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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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]

  1. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  2. ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0091". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ 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.
  4. ^ Carr, Charles W. (1953). The use of cyanamid for weed control in vegetable crops (MSc thesis). University of Massachusetts Amherst. doi:10.7275/18863820.
  5. ^ Cite error: The named reference scher was invoked but never defined (see the help page).
  6. ^ "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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