Constituent NH3 - phase I | SSHADE

Constituent

Name: NH3 - phase I
Official name: Ammonia ice

Family: molecular solid
Class: polar molecular solid
Compound type: inorganic molecular solid

Chemical composition

Formula: NH₃
Chemical formula: NH3
Elemental formula: N H3
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	NH₃	Ammonia	molecule	1	1.0	1.0	pure	main

Chemical functions and bonds

Chemical bonds

	Bond	Number	Relevance
	>N-H	3	main

Class: molecular solids with polar molecules (02)
Type: with polyatomic inorganic polar molecules (02.02)

Phase name: cubic NH3 ice
Phase type: crystalline

Crystallography

Crystal system: isometric (cubic)
Crystal class: tetartoidal
Crystal class symbol: 23 (T)
Crystal spacegroup: P2(1)3

Physical properties

Molar mass: 17.0305 g/mol
Density: 0.817 (193 K) g/cm³

Optical properties

Refraction index n_α: 1.333
Diaphaneity: transparent
Luster: vitreous