| slovo | definícia |
Pb3O4
(gcide) | massicot \mas"si*cot\, n. [F. massicot; E. masticot is a
corruption.] (Chem.)
Lead monoxide (also called Lead protoxide), PbO, obtained
as a yellow amorphous powder, the fused and crystalline form
of which is called litharge; lead ocher. It is used as a
pigment. It is also called lead oxide yellow, as opposed to
red lead, which is lead tetroxide Pb3O4.
[1913 Webster +PJC]
Note: Massicot is sometimes used by painters, and also as a
drier in the composition of ointments and plasters.
[1913 Webster] |
Pb3O4
(gcide) | minium \min"i*um\ (?; 277), n. [L. minium, an Iberian word, the
Romans getting all their cinnabar from Spain; cf. Basque
armine['a].] (Chem.)
A heavy, brilliant red pigment, consisting of an oxide of
lead, Pb3O4, obtained by exposing lead or massicot to a
gentle and continued heat in the air. It is used as a cement,
as a paint, and in the manufacture of flint glass. Called
also red lead, lead tetroxide, lead orthoplumbate,
mineral orange, mineral red, Paris red, Saturn red,
and less definitively, lead oxide.
[1913 Webster] |
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