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磷酸二氢铝

磷酸二氢铝

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英文名 aluminium tris(dihydrogen phosphate)
识别
CAS号 13530-50-2  checkY
SMILES
 
  • [Al+3].[O-]P(=O)(O)O.[O-]P(=O)(O)O.[O-]P(=O)(O)O
性质
化学式 Al(H2PO4)3
摩尔质量 317.94 g·mol⁻¹
外观 黏稠液体或白色晶體
密度 介於1.44 g/cm3至1.47
溶解性 可溶於水
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

磷酸二氢铝(英文:aluminium tris(dihydrogen phosphate))是一種無機化合物,由組成,化學式為Al(H2PO4)3。能吸收紅外線、絕緣性、熔點高,故耐高溫、能吸收力學波,故具抗震效果、具有一定的硬度,故不易剝落,在工業相關技术上都有用途。

制備

[编辑]

它可由磷酸硝酸铝反应制备。[1]氢氧化铝为原料,按化学计量比和磷酸在120~170 °C反应,也能得到产物:[2]

Al(OH)3 + 3 H3PO4 → Al(H2PO4)3 + 3 H2O

过低或过高的反应温度会产生铝的其它磷酸盐。

参考文献

[编辑]
  1. ^ Xiaoxiang Xu, Shanwen Tao, John T.S. Irvine. Proton conductivity of Al(H2PO4)3–H3PO4 composites at intermediate temperature. Solid State Ionics. 2009-04-27, 180 (4-5): 343–350 [2020-04-19]. doi:10.1016/j.ssi.2008.11.001. (原始内容存档于2018-06-17) (英语). 
  2. ^ 刘长春, 符德学. 廉价磷酸二氢铝的制备及在耐火材料中的应用. 耐火材料, 1998, 032(005): 285-286.
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磷酸二氢铝
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