Magnesium nitrate

Magnesium nitrate
Names
	IUPAC name Magnesium nitrate
	Other names Nitromagnesite (hexahydrate)
Identifiers
CAS Number	10377-60-3 ; 15750-45-5 (dihydrate) ; 13446-18-9 (hexahydrate) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:64736 ;
ChemSpider	23415 ;
ECHA InfoCard	100.030.739
EC Number	233-826-7;
PubChem CID	25212;
RTECS number	OM3750000 (anhydrous); OM3756000 (hexahydrate);
UNII	77CBG3UN78 ; V85K20LJMK (hexahydrate) ;
UN number	1474
CompTox Dashboard (EPA)	DTXSID4049664 ;
	InChI InChI=1S/Mg.2NO3/c;22-1(3)4/q+2;2-1 Key: YIXJRHPUWRPCBB-UHFFFAOYSA-N ; InChI=1/Mg.2NO3/c;22-1(3)4/q+2;2-1 Key: YIXJRHPUWRPCBB-UHFFFAOYAA;
	SMILES [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Mg+2];
Properties
Chemical formula	Mg(NO3)2
Molar mass	148.32 g/mol (anhydrous); 184.35 g/mol (dihydrate); 256.41 g/mol (hexahydr.)
Appearance	White crystalline solid
Density	2.3 g/cm3 (anhydrous) ; 2.0256 g/cm3 (dihydrate) ; 1.464 g/cm3 (hexahydrate)
Melting point	129 °C (264 °F; 402 K) (dihydrate) ; 88.9 °C (hexahydrate)
Boiling point	330 °C (626 °F; 603 K) decomposes
Solubility in water	71 g/100 mL (25 °C)
Solubility	moderately soluble in ethanol, ammonia
Refractive index (nD)	1.34 (hexahydrate)
Structure
Crystal structure	cubic
Thermochemistry
Heat capacity (C)	141.9 J/mol K
Std molar; entropy (S⦵298)	164 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	−790.7 kJ/mol
Gibbs free energy (ΔfG⦵)	−589.4 kJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Irritant
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H272, H315, H319, H335
Precautionary statements	P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
NFPA 704 (fire diamond)	1 0 0 OX
Safety data sheet (SDS)	External MSDS
Related compounds
Other anions	Magnesium sulfate; Magnesium chloride
Other cations	Beryllium nitrate; Calcium nitrate; Strontium nitrate; Barium nitrate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Magnesium nitrate refers to inorganic compounds with the formula Mg(NO₃)₂(H₂O)_x, where x = 6, 2, and 0. All are white solids. The anhydrous material is hygroscopic, quickly forming the hexahydrate upon standing in air. All of the salts are very soluble in both water and ethanol.