Calcium nitride

Calcium nitride

Chembox new
ImageFile =
ImageSize =
IUPACName = Calcium nitride
OtherNames = tricalcium dinitride
Section1 = Chembox Identifiers
CASNo = 12013-82-0
PubChem = 736837
EINECS = 234-592-9
SMILES =
Section2 = Chembox Properties
Ca = 3 | N = 2
Formula =
MolarMass =
Appearance = red-brown crystalline solid
Density = 2670 kg m-3
MeltingPtC = 1195
BoilingPt =
Solubility =
Section3 = Chembox Hazards
MainHazards =
FlashPt =
Autoignition =

Calcium nitride is a red-brown, crystalline solid made up of calcium and nitrogen. Its chemical formula is Ca3N2. [citation|title=Concise Encyclopedia Chemistry|author= Mary Eagleson|year= 1994|publisher=Walter de Gruyter|url= http://books.google.com/books?vid=ISBN3110114518&id=Owuv-c9L_IMC&pg=PA160&lpg=PA160&ots=zUvZ-shMj9&dq=%22Calcium+nitride%22&ie=ISO-8859-1&output=html&sig=RdkdyoTgAisqrZokvh5NGfjylik|id=ISBN 3110114518] α-Calcium nitride is the commonly encountered form and this has an anti-bixbyite structure and is similar to Mn2O3 except that the positions of the ions are reversed, calcium (Ca2+) take the oxide (O2−) positions and nitride ions (N3−) the manganese (Mn3+). Calcium nitride is formed along with the oxide, CaO, when calcium burns in air. It can be produced by direct reaction of the elements: 3Ca + N2 → Ca3N2

It reacts with moisture in air to give ammonia and calcium hydroxide:

Ca3N2+ 6H2O → 3Ca(OH)2 + 2NH3 It absorbs hydrogen above 350oC: [ Heyns A. M.,Prinsloo L. C., Range K.J.,Stassen M. J. solid state chem. 1998, vol. 137, 1, 33]

Ca3N2 + 2H2 → 2CaNH + CaH2

General references

*Greenwood&Earnshaw

Footnotes

External links

* [http://www.webelements.com/webelements/compounds/text/Ca/Ca3N2-12013820.html WebElements entry]


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • nitride — /nuy truyd, trid/, n. Chem. a compound, containing two elements only, of which the more electronegative one is nitrogen. [1840 50; NITR + IDE] * * * ▪ chemical compound Introduction       any of a class of chemical compounds in which nitrogen is… …   Universalium

  • Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …   Wikipedia

  • calcium — /kal see euhm/, n. Chem., Biol. a silver white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element… …   Universalium

  • Boron nitride — IUPAC name Boron nitride Identifiers …   Wikipedia

  • Dictionary of chemical formulas — This is a list of chemical compounds with chemical formulas and CAS numbers, indexed by formula. This complements alternative listings to be found at list of inorganic compounds, list of organic compounds and inorganic compounds by element. Table …   Wikipedia

  • List of inorganic compounds — Tentative listing related to this page, inorganic compounds by element (presently under construction), as well as . This list is not necessarily complete or up to date ndash; if you see an article that should be here but isn t (or one that… …   Wikipedia

  • steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • E941 — Eigenschaften …   Deutsch Wikipedia

  • E 941 — Eigenschaften …   Deutsch Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”