White lead pigments

Lead(II) sulphide is oxidised to lead(II) sulphate this reaction has been used in the restoration of old pictures where the white lead pigment has become blackened by conversion to lead sulphide due to hydrogen sulphide in urban air ... 

Thenard A process for making white lead pigment (basic lead carbonate) by boiling litharge (lead monoxide) with lead acetate solution and passing carbon dioxide gas into the suspension. 

Cosmetics are natural or synthetic toiletry products that are used to maintain hygiene and include externally applied products used to enhance appearance. This class includes dental products, bath supplies (e.g., bubble baths, body washes, and bath beads), powders, lotions, lipsticks, perfumes, colognes, shampoos, depilatories, and hair coloring/waving products. Most of these products contain alcohols, aromatic hydrocarbons, perborates, and anionic and nonionic surfactants. Use of cosmetics is as old as civilization itself. Centuries ago wealthy women would apply the white lead pigment known as ceruse to their faces to appear fashionably pale - sometimes with lethal consequences. Women also used belladonna alkaloids like atropine to dilate pupils to enhance the attractiveness of the eyes in the late nineteenth century. 

Vermilion pigments White lead pigments Whiting... 

If Vermeer did paint Emmaus around the mid-seventeenth century, the radioactive equilibrium would have been restored in the white lead pigment by 1960. But this was not the case. Radiochemical analysis showed that the paint used was less than one hundred years old. Therefore, the painting could not have been the work of Vermeer. 

BSWL. pagle-Pidier] Basic silteate white lead pigment, heat stabilizer for idastics rust-inhibitive pigment in the automobile industry us in industrial or maintenance paints. 

White lead pigments have not been used in architectural paints for many years. White lead, PbC03 Pb(OH2), was used extensively as a white pigment until the... 

Chamber white lead n. Particular type of white lead pigment, made by hanging strips or straps of lead in chambers, and subjecting them to the corrosive action of moist air, carbon dioxide, and acetic acid vapor. Chamber white lead differs from the stack form, usually being finer and of a better color. 

The first law in Great Britain pertaining to white lead was enacted in 1891 (Hutton, 1923) and, like France, incorporated occupational controls on lead and lead paint, including white lead pigment production and use through a series of regulations enacted over the early twentieth century. 

WHITE LEAD PIGMENT PRODUCTION IN THE UNITED STATES... 

A material is said to fluoresce if it emits radiation as the result of absorbing higher energy radiation fi om some remote source. Each element has a characteristic X-ray fluorescence spectrum that is essentially independent of the composition of the material that is, the characteristic lead X-ray fluorescence spectrum is the same for red lead pigments as for white lead pigments. 

White lead pigment Carter Chemical Co. 1. 3PbCOj 2Pb(OH)2 HjO... 

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