massicot n : the mineral form of lead monoxide; in the form of yellow powder it is used as a pigment [syn: massicotite]
monoxide, 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; also, lead oxide yellow, as opposed to
lead, which is lead
- Note Massicot is sometimes used by painters, and also as a
drier in the composition of ointments and plasters.
- 1952: Besides orpiment, already referred to, one occasionally gets mention of massicot, a yellow lead paint. — L.F. Salzman, Building in England, p. 169.
- Note Massicot is sometimes used by painters, and also as a drier in the composition of ointments and plasters.
- Spanish: masicote
Massicot is one of the natural mineral forms of lead(II) oxide, PbO. Massicot is the orthorhombic dimorph of the tetragonal form of lead oxide, litharge. It forms soft (Mohs hardness of 2) yellow to reddish-yellow, earthy, scaley masses which are very dense, with a specific gravity of 9.64.
It was first described in 1841 for an occurrence in Stolberg, near Aachen, Germany. Massicot is French for lead oxide.
massicot in Italian: Massicot
massicot in Slovak: Masikot