LEAD SESQUIOXIDE

Chemical properties

reddish yellow amorphous powder(s); obtained from PbO2 by hydrothermal reaction; used in ceramics, ceramic cements, metallurgy, and in varnishes [HAW93] [MER06] [KIR78]

Physical properties

Orange-yellow amorphous powder; decomposes at 370°C; insoluble in cold water; decomposes in hot water and acids.

The Uses of LEAD SESQUIOXIDE

Lead trioxide is a catalyst for oxidation of carbon monoxide in exhaust gases. Other uses are vulcanizing neoprene rubber; fireproofing plastics; detecting radiation; and manufacturing high-purity diamonds.

Preparation

Lead trioxide is prepared by adding sodium hypochlorite or bromine to an aqueous solution of sodium plumbite.

Hazard

Tetraethyl lead is a highly toxic compound manifesting both acute and chronic effects. These effects are insomnia, hypotension, hypothermia, tremor,.