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Calcium Nitride

Calcium nitride, referred to as calcium azanidylidenecalcium in IUPAC nomenclature, is an inorganic compound with constituent elements calcium and nitrogen and represented by the chemical formula Ca3N2 [1]. It has different isomorphous forms, out of which α-calcium nitride is commonly found [2].

Calcium Nitride Identification

CAS Number 12013-82-0 [3, 4]
PubChem CID 3387080 [1]
ChemSpider ID 21171155 [4]
EC Number 234-592-9 [3]
RTECS Number N/A [3]
InChI Key XCNGEWCFFFJZJT-UHFFFAOYSA-N [1]

Calcium Nitride Formula

How is Calcium Nitride Prepared

It can be synthesized when calcium is heated at an elevated temperature in the presence of air, which is represented by the following direct reaction of the elements [2]:

3Ca + N2 → Ca3N2

The calcium nitride formed can be easily identified, as it reacts with moisture or water to produce calcium hydroxide and ammonia [2]:

Ca3N2 + 6H2O → 3Ca(OH)2 + 2NH3

Calcium Nitride Ionic Bond

Properties and Characteristics of Calcium Nitride

General Properties

Molar Mass/Molecular Weight 148.248 g/mol [1]

Physical Properties

Color and Appearance Reddish-brown crystalline powder [2, 3]
Melting Point 1,195 °C, 2,183 °F [5]
Boiling Point N/A [3]
Density 2.63 g cm-3 [3]
State of matter at room temperature (solid/liquid/gas) Solid [3]
Solubility N/A
Solubility in Water Decomposes in H2O

Atomic Properties

Crystal Structure Cubic [5]

Calcium Nitride Chemical Structure

Uses

  • Ca3N2 can be used for obtaining reactive nitride ions [5].
  • Calcium hydride (a desiccant) can be produced by heating calcium nitride with hydrogen at temperatures above 350 °C [2].

Is it Toxic

Repeated contact or overexposure to Ca3N2 has been linked to eye damage and skin burns [6]. It is a flammable solid and should be kept away from sparks, heat, open flames, and water, because of possible dangerous reactions [6].

References:

  1. Calcium Nitride (Ca3N2) – Pubchem.ncbi.nlm.nih.gov
  2. Calcium Nitride – Revolvy.com
  3. Calcium Nitride – Americanelements.com
  4. Calcium bis(azanidylidenecalcium) – Chemspider.com
  5. Calcium Nitride Properties – Worldofchemicals.com
  6. Calcium Nitride – Chemicalbook.com

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