Cadmium(II) nitrate hydrates | SSHADE

Solid phase

Official name: Cadmium(II) nitrate hydrates

Family: ionic solid
Class: normal salt
Compound type: nitrate

Chemical composition

Formula: $Cd^{2+}.(NO_3^-)_2 \bullet nH_2O$
Chemical formula: Cd(NO3)2.nH2O
Elemental formula: (Cd2+) (N+)2 (O)3-n (O-)4 (H)2-n
Isotope mixture type: terrestrial abundance

6.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Cd^{2+}$	Cadmium cation	element	1	0.3333333333333333	1	constituent cation	main
	$(NO_3)^-$	Nitrate anion	chemical function	2	0.6666666666666666	1	anionic radical	main
	$H_2O$	Water	molecule	1 - n		1	hydration	main

Composition comments: most common is the tetrahydrate

Chemical functions and bonds

Chemical functions

	Function	Number
	$(NO_3)^-$	2
	$R-OH$	2

Chemical bonds

	Bond	Number
	$\cdot Cd^{2+} \cdot O^{-}-$	2
	$-O \dots H-$	n
	$-O-H$	2
	$\dddot - \dddot - N^+ \dddot - O^{-2/3}$	3

Class: normal salts (07)
Type: hydrated simple normal salts (07.04)

Endmembers and polymorphs

Endmembers

Cadmium(II) nitrate tetrahydrate

Crystallography

Phase type: crystalline
Crystal system: various

Physical properties

Molar mass: 236.42 - 308.48 - $g/mol$
Density: - 2.45 - 3.6 $g/cm^3$

Thermodynamical properties

State NTP

solid

Phase transitions

Phase transition type	Other phases	Temperature - Pressure
solid-liquid	liquid	360°C (anhydrous) to 59.5 °C (tetrahydrate)

Optical properties

Refringence type: various
Pure color: colorless
Color: colorless, white
Diaphaneity: transparent to translucent
Luster: vitreous

Links and Publications

Links

Wikipedia: Cadmium nitrate