Calcium nitride , 99 , 12013-82-0

Synonym(s):
Tricalcium dinitride

CAS NO.：12013-82-0

Empirical Formula: Ca3N2

Molecular Weight: 148.25

MDL number: MFCD00015985

EINECS: 234-592-9

PRODUCT Properties

• Melting point: 1195°C
• Boiling point: 1195 °C
• Density: 2.63 g/mL at 25 °C(lit.)
• solubility: soluble in H2O, acid solutions; insoluble in ethanol
• form: Pieces
• Specific Gravity: 2.63
• color: Brown
• Water Solubility: Insoluble in water.
• Sensitive: Moisture Sensitive
• InChIKey: DVJMVZQXJNJSJR-UHFFFAOYSA-N

Description and Uses

Calcium nitride has the formula of Ca3N2 and the molecular weight of grams per mole. It can be prepared by the reactionofCametal inapure streamof nitrogen gas:
3Ca + 2N2 ? Ca3N2
A second method is the decomposition of an amide:
3Ca(NH2)2 + heat ? Ca3N2 + 4NH3
This must be accomplished in an inert atmosphere (not nitrogen gas). It is a reddish-brown powder. Its CAS number is 12013-82-0 and its density is 2.76 g/ cm³. It melts at 1195 °C (2183 F).α-Calcium nitride is the commonly encountered form. It has an antibixbyite structure similar to Mn2O3, except that the positions of the ions are reversed: calcium (Ca²⁺) ions take the oxide (O^2-) positions and nitride ions (N^3-) that of the manganese (Mn³⁺). If Ca metal is burned in air, it forms the oxide, CaO, and the nitride, Ca3N2. The latter reacts with atmospheric moisture to produce the hydroxide of calcium and ammonia:
Ca3N2 + 6H2O ? 3Ca(OH)2 + 2NH3

Calcium nitride is used as a nitride source in metathesis reactions to produce complex nitrides as well as SiAlON-related optical materials.

Safety

• Symbol(GHS): GHS02,GHS05
• Signal word: Danger
• Hazard statements: H260-H314
• Precautionary statements: P231+P232-P260-P280-P301+P330+P331-P303+P361+P353-P305+P351+P338
• Hazard Codes: F,C
• Risk Statements: 11-29-34
• Safety Statements: 16-22-26-36/37/39-45
• RIDADR: UN 3208 4.3/PG 1
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 4.1
• PackingGroup: II