litharge


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litharge

[′li‚thärj]
(inorganic chemistry)

litharge

A yellow lead monoxide (a powder of lead oxide); used as a pigment, as a drier, and as a catalyst in paints. Also see massicot.
References in periodicals archive ?
US-based Hammond Group, Inc., a producer of lead oxides, expanders, and specialty chemicals for lead-acid batteries, has acquired 100% ownership of Malaysian chemical producer Asia Litharge Sdn Bhd, the company said.
'lead': "Except for tetraethyllead [Pb(C2H5)4], an organic compound that has been used as a gasoline antiknock additive, litharge is the most important commercial compound of lead [...]." > Dejando aparte el tetraetilplomo, Pb(C2H5)4 (compuesto organico cuya incorporacion a la gasolina como aditivo antidetonante, tras haber sido ampliamente practicada en el pasado, hoy esta prohibida), el litargirio es el compuesto de plomo mas importante [...].
Bisphenolcured elastomers are typically formulated with metallic oxides, of which lead oxide (litharge) is the traditional choice for steam resistant applications because it prevents the seal from swelling when it comes into contact with water or steam.
Last Thursday the Ali Baba cafe at 242 Litharge Road, was closed after environmental health officers found a serious mouse infestation, food contaminated with mouse droppings, poor standards of cleanliness and serious breaches of hygiene laws.
These include arseniosiderite, bromargyrite, cabalzarite, chalcophyllite, clinoclase, clinotyrolite, cobaltkoritnigite, cornubite, fornacite, geminite, litharge, mottramite, nickellotharmeyerite, novacekite, parnauite, powellite, uvarovite, walentaite, wulfenite, yukonite and zalesiite.
Claudio Bonaca, from Perugia, supplied enamels containing lead and litharge as well as other raw materials such as clay, cones and fireclay.
Do not use any lead products, such as red lead or litharge.
In 2003, the Rhode Island Department of Health (RIDOH) recognized litargirio (also known as litharge or lead monoxide), a yellow or peach-colored powder used as an antiperspirant/deodorant and a folk remedy in the Hispanic community, as a potential source of lead exposure for Hispanic children.
Employees from eight lead-using factories [five storage-battery factories, two secondary-smelting factories, and one litharge (PbO) making factory] were studied.
Bright-yellow litharge (PbO) was the key pigment in yellow and orange paints.
(Category 4 was previously referred to as nontoxic.) Halstab 1141 is a version of litharge designed for rubber applications requiring low TCLP while Halstab 1178 is a version of dibasic lead phthalate with improved color hold properties.
Hence the procedure is conducted as follows: the ore is finely ground and mixed with lead monoxide (litharge), a flux (soda, borax, sometimes silica) and a reducing agent (powdered charcoal, maize meal or flour), then heated to reduce the lead oxide to metallic lead and to separate the two phases, lead and slag.