Definition of lead sulfate
: a sulfate of lead: such as a : the poisonous normal sulfate PbSO4 occurring native as anglesite and obtained synthetically as a white crystalline powder b : any of several basic salts (as the monobasic sulfate Pb2OSO4 occurring naturally as lanarkite) or a mixture containing one or more of these used as a pigment — compare blue lead 2 white lead b
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