Magnesium perchlorate

Magnesium perchlorate
Identifiers
CAS Number	10034-81-8 ; 64010-42-0 (hydrate) ; 13446-19-0 (hexahydrate) ;
3D model (JSmol)	Interactive image;
ChemSpider	23223 ;
ECHA InfoCard	100.030.086
PubChem CID	24840;
RTECS number	SC8925000;
UNII	7N77Z541YF ;
CompTox Dashboard (EPA)	DTXSID70890617 ;
	InChI InChI=1S/2ClHO4.Mg/c22-1(3,4)5;/h2(H,2,3,4,5);/q;;+2/p-2 Key: MPCRDALPQLDDFX-UHFFFAOYSA-L ; InChI=1/2ClHO4.Mg/c22-1(3,4)5;/h2(H,2,3,4,5);/q;;+2/p-2 Key: MPCRDALPQLDDFX-NUQVWONBAH;
	SMILES [Mg+2].O=Cl(=O)(=O)[O-].[O-]Cl(=O)(=O)=O;
Properties
Chemical formula	Mg(ClO4)2
Molar mass	223.206 g/mol
Appearance	white powder, ; deliquescent
Odor	odorless
Density	2.21 g/cm3 (anhydrous) ; 1.98 g/cm3 (hexahydrate)
Melting point	251 °C (484 °F; 524 K) (anhydrous) ; 95-100 °C (hexahydrate)
Boiling point	decomposition
Solubility in water	99.3 g/100 mL
Solubility in ethanol	23.96 g/100 mL
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Oxidizer
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H315, H319, H335
Precautionary statements	P220, P261, P305+P351+P338
NFPA 704 (fire diamond)	1 0 0 OX
Safety data sheet (SDS)	External MSDS
Related compounds
Other cations	Calcium perchlorate; Barium perchlorate
	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 perchlorate is a powerful oxidizing agent, with the formula Mg(ClO₄)₂. The salt is also a superior drying agent for gas analysis.

Magnesium perchlorate decomposes at 250 °C. The heat of formation is -568.90 kJ/mol.

Magnesium perchlorate is very soluble in water (99.3 g/100 mL at room temperature), and because of this the freezing point depression can be quite high, with the eutectic point at −64 °C (−83 °F).

It is sold under the trade name Anhydrone. Manufacture of this product on a semi-industrial scale was first performed by G. Frederick Smith in his garage in Urbana Illinois, but later at a permanent facility in Columbus, Ohio called G. Frederick Smith Chemical Co. He sold the magnesium perchlorate to A. H. Thomas Co., now Thomas Scientific, under the trade name Dehydrite.