檢視偏磷酸的原始碼

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中文名;偏磷酸

化学式;HPO3

CAS登录号;37267-86-0

熔    点;73.6℃

外    观;无色玻璃状体

危险性描述;强腐蚀性，对呼吸道有刺激性
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'''偏磷酸'''是一种无机物，化学式HPO3，分子量80，无色[[玻璃]]状体，易潮解，密度2.2～2.5g/cm3，易溶于水并生成正磷酸（H3PO4）。常见的偏磷酸是三聚偏磷酸（HPO3）3和四聚偏磷酸（HPO3）4，其化学式均写简为HPO3。用作化学试剂、脱水剂、[[催化剂]]。由磷酸高温脱水或由五氧化二磷跟适量冷水反应制得。<ref>[https://www.chemicalbook.com/NewsInfo_9128.htm 磷酸和偏磷酸有什么区别],360搜索 , 2020年10月20日</ref>