碱式碳酸铅是一种无机化合物,化学式为Pb3(OH)2(CO3)2,有时写作2PbCO3·Pb(OH)2。周易参同契中有句:胡粉投火中,色坏还为铅。里面胡粉指的是此物。
制备
称量乙酸铅并溶于水,配制成0.1mol/L的溶液。将溶液煮沸,通入二氧化碳,析出碱式碳酸铅沉淀。其它制法还有将碳酸钠溶液加入硝酸铅溶液中,或将氯化铅或硫酸铅在碳酸钠溶液中煮沸,都能得到碱式碳酸铅。[3]
参考文献
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