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red lead

   Also found in: Dictionary/thesaurus, Wikipedia 0.03 sec.
red lead, bright red to orange-red powder, also called minium, that is used in the manufacture of storage batteries, lead glass, and red pigments; a paint made with red lead is commonly used to protect iron and steel from rusting. Chemically, red lead is lead tetroxide, Pb3O4, a water-insoluble compound that is prepared by the oxidation of metallic lead or of litharge (lead monoxide); the commercial product sometimes contains litharge as an impurity.
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His study of 100 sweets sold in Britain during the early part of the 19th century found that 59 contained lead chromate, 12 contained red lead, and 10 contained Brunswick green (a mixture of Prussian blue and lead chromate).
Lead contamination in cocoa and cocoa products: isotopic evidence of ... by Flegal, A. Russell / Environmental Health Perspectives
Do not use any lead products, such as red lead or litharge.
Selection/use of colorants in dispersions by Miller, Tim / Rubber World
If the test probes are inadvertently reversed-black lead on the circuit being tested, red lead on the ground point-the display will simply read -12 volts.
Multimeter Magic by Anderson, Dan / Farm Journal
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