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|Section2= |Section3= |Section4= |Section7= |Section8= }} Aluminium arsenate is a inorganic compound with the formula AlAsO4.〔(Aluminum arsenate at Chemister )〕 It is most commonly found as an octahydrate. It is a colourless solid that is produced by the reaction between sodium arsenate and a soluble aluminium salt. Aluminium arsenate occurs naturally as the mineral mansfieldite.〔Chemistry of Arsenic, Antimony, and Bismuth, Edited by N. C. Norman. page 131,〕 A synthetic hydrate of aluminium arsenate is produced by hydrothermal method. with the formulation, Al2O3.3As2O5.10H2O.〔http://www.minsocam.org/ammin/AM39/AM39_1005.pdf〕 Modification of aluminium orthoarsenate was carried out by heating different samples to different temperatures.Both amorphous and crystalline forms were obtained.〔B. Sharan "A new modification of aluminum ortho-arsenate" Acta Cryst. 1959, vol. 12, 948-949. 〕 The solubility product was determined to be 10−18.06. for Aluminium arsenate of formula AlAsO4.3.5H2O〔Fernando L. Pantuzzo, Luciano R.G. Santos, Virginia S.T. Ciminelli "Solubility-product constant of an amorphous aluminum-arsenate phase (AlAsO4·3.5H2O) AT 25 °C" Hydrometallurgy Volumes 2014, 144–145, Pages 63–68. 〕 Like gallium arsenate and boron arsenate, it adopts the α-quartz-type structure. The high pressure form has a rutile-type structure in which aluminium and arsenic are six-coordinate. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Aluminium arsenate」の詳細全文を読む スポンサード リンク
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