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LEAD OXIDE |
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 Lead oxide or Litharge is a toxic yellow oxide of
lead of formula PbO, created by heating lead in air. It
can also be formed by heating lead nitrate (Pb(NO3)2. It
is used in the manufacture of paints and in glass, as
well as in vulcanization. A mixture with glycerine sets
to a hard, waterproof cement that has been used to join
the flat glass sides and bottoms of aquaria.
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