Calcium nitride

Crystal structure
	__ N 3− __ Ca 2+
General
Surname	Calcium nitride
Ratio formula	Ca 3 N 2
Brief description	Solid
External identifiers / databases
EC number	234-592-9
ECHA InfoCard	100,031,435
PubChem	6100390
Wikidata	Q2631244
properties
Molar mass	148.25 g mol −1
Physical state	firmly
density	2.63 g cm −3 (25)
safety instructions
H and P phrases	H: 260-314
	P: 223-231 + 232-280-305 + 351 + 338-370 + 378-422
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Calcium nitride is an inorganic chemical compound of calcium from the group of nitrides .

Extraction and presentation

Calcium nitride can be obtained by reacting calcium (including its combustion in air) with nitrogen.

{\ displaystyle \ mathrm {3 \ Ca + N_ {2} \ longrightarrow Ca_ {3} N_ {2}}}

It can also be obtained by decomposing calcium amide .

properties

Calcium nitride is black to golden yellow or mixed colors, depending on the display temperature. α-calcium nitride (C-sesquioxide type or anti- bixbyite structure, space group Ia 3 (space group no. 206) with the lattice parameter a = 10.40 Å ) changes to β-calcium nitride at 700 ° C. Template: room group / 206

With water it decomposes to calcium hydroxide and ammonia .

{\ displaystyle \ mathrm {Ca_ {3} N_ {2} +6 \ H_ {2} O \ longrightarrow 3 \ Ca (OH) _ {2} +2 \ NH_ {3}}}

Individual evidence

↑ ^a ^b ^c ^d ^e data sheet Calcium nitride, −200 mesh, 95% from Sigma-Aldrich , accessed on March 25, 2013 ( PDF ).
^ Mary Eagleson: Concise Encyclopedia Chemistry . Walter de Gruyter, 1994, ISBN 3-11-011451-8 , p. 160 ( limited preview in Google Book Search).
↑ ^a ^b Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 929.
^ ^A ^b Richard C. Ropp: Encyclopedia of the Alkaline Earth Compounds . Newnes, 2012, ISBN 0-444-59553-8 , pp. 205 ( limited preview in Google Book search).

[Sigma-1] ↑ ^a ^b ^c ^d ^e data sheet Calcium nitride, −200 mesh, 95% from Sigma-Aldrich , accessed on March 25, 2013 ( PDF ).

[Mary_Eagleson-2] Mary Eagleson: Concise Encyclopedia Chemistry . Walter de Gruyter, 1994, ISBN 3-11-011451-8 , p. 160 ( limited preview in Google Book Search).

[brauer-3] Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 929.

[Richard_C._Ropp-4] A ^b Richard C. Ropp: Encyclopedia of the Alkaline Earth Compounds . Newnes, 2012, ISBN 0-444-59553-8 , pp. 205 ( limited preview in Google Book search).