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massicot 铅黄; 一氧化铅 铅黄; 一氧化铅 massicot n 1: the mineral form of lead monoxide; in the form of yellow powder it is used as a pigment [ synonym: { massicot}, { massicotite}] Litharge \ Lith" arge\ ( l[ i^] th"[. a] rj), n. [ OE. litarge, F. litharge, L. lithargyrus, Gr. liqa` rgyros the scum or foam of silver; li` qos stone ' a` rgyros silver. Litharge is found in silverbearing lead ore.] ( Chem.) Lead monoxide; a yellowish red substance, obtained as an amorphous powder, or crystallized in fine scales, by heating lead moderately in a current of air or by calcining lead nitrate or carbonate. It is used in making flint glass, in glazing earthenware, in making red lead or minium, etc. Called also { massicot}. [ 1913 Webster]
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]
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