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Spontaneous Formation of Crystalline Lithium Molybdate From Solid Reagents at Room Temperature

Spontaneous Formation of Crystalline Lithium Molybdate From Solid Reagents at Room Temperature

Thomas W S Yip, Edmund J Cussen, Claire Wilson

Dalton Trans. 2010 Jan 14;(2):411-7.

PMID: 20023976

Abstract:

Lithium molybdate has been prepared by grinding LiOH x H(2)O with MoO(3) in air at room temperature. X-Ray powder diffraction data show that the formation of highly crystalline Li(2)MoO(4) is largely complete after 10 min. The phenacite structure of this material is the same as that derived from an X-ray diffraction study of a single crystal obtained from aqueous solution [R3; a = 14.3178(14) A, c = 9.5757(9) A]. Anhydrous lithium hydroxide fails to give the same reaction indicating that the water of crystallisation of LiOH x H(2)O is a vital component in this rapid synthesis. Differential scanning calorimetry measurements show that this reaction can proceed spontaneously between the two stable solid reagents at sub-ambient temperatures and is driven by the liberation of water from the crystalline lattice. Lithium molybdate prepared in this manner has significantly smaller and more regularly shaped particles than samples prepared by other synthetic methods.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP13568406	Lithium molybdate		13568-40-6	Price

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