- Magnesium perchlorate
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Magnesium perchlorate Identifiers CAS number 10034-81-8 PubChem 24840 ChemSpider 23223 RTECS number SC8925000 Jmol-3D images Image 1 - [Mg+2].O=Cl(=O)(=O)[O-].[O-]Cl(=O)(=O)=O
Properties Molecular formula Mg(ClO4)2 Molar mass 223.206 g/mol Appearance white powder,
deliquescentDensity 2.21 g/cm3 Melting point 251 °C
Boiling point decomposition
Solubility in water 99.3 g/100 mL Solubility in ethanol 24 g/100 mL Hazards MSDS External MSDS EU Index Not listed R-phrases R8, R36, R37, R38 S-phrases S17, S26, S27, S36, S37, S39 NFPA 704 Related compounds Other cations Calcium perchlorate
Barium perchlorate(verify) (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Magnesium perchlorate is a powerful oxidizing agent, with the formula Mg(ClO4)2.
Magnesium perchlorate decomposes at 250 °C.[1] The heat of formation is -568.90 kJ mol-1.[2]
The enthalpy of solution is quite high, so reactions are done in large amounts of water to dilute it.
It is sold under the trade name anhydrone.
It was used as desiccant to dry gas or air samples,[3][4] but is no longer advised due to hazards inherent in perchlorates.[5] It is dried by heating at 250 °C under vacuum.
References
- ^ CRC Handbook
- ^ Lange's
- ^ H. H. Willard, G. F. Smith (1922). "The Preparation and Properties of Magnesium Perchlorate and its Use as a Drying Agent". Journal of the American Chemical Society 44 (10): 2255–2259. doi:10.1021/ja01431a022.
- ^ L. Wu, H. He (1994). "Preparation of perlite-based magnesium perchlorate desiccant with colour indicator". The Chemical Educator 41 (5): 633–637. doi:10.1016/0039-9140(94)80041-3.
- ^ W. L. F. Armarego and C. Chai (2003). Purification of laboratory chemicals. Oxford: Butterworth-Heinemann. ISBN 0750675713.
Magnesium compounds Categories:- Perchlorates
- Magnesium compounds
- Oxidizing agents
- Inorganic compound stubs
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