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Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]
Reckitt and Sons was a leading British manufacturer of household products, notably starch, black lead, laundry blue, and household polish, and based in Kingston upon Hull. Isaac Reckitt began business in Hull in 1840, and his business became a private company "Isaac Reckitt and Sons" in 1879, and a public company in 1888. The company expanded ...
The color is caused by the size and dispersion of gold particles. Ruby gold glass is usually made of lead glass with added tin. Silver compounds such as silver nitrate and silver halides can produce a range of colors from orange-red to yellow. The way the glass is heated and cooled can significantly affect the colors produced by these compounds.
Graphite, also known as "black lead" Mixed with oil or grease as a finish for stoves; Blacklead, another name for the Plumbago drawing style and medium; Blacklead Island, Nunavut, Canada; Black residue left from chimney smoke, cooking fires, etc. "...And the half- washed out traces of smut and blacklead that tattooed her countenance."
Stiegel's works was the first to make lead glass in America. [50] The lead glass of this time period, commonly known as crystal because it was colorless and transparent, was typically used for fine tableware. [51] According to the American Philosophical Society, Stiegel's lead glass was "equal in beauty and quality to the generality of Flint ...
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The American glass manufacturers also had to compete with English glassmakers. By 1740, English glassmakers produced good quality window glass and some of the best lead crystal glassware available. English trade restrictions caused most of the glassware purchased in America before the American Revolutionary War to be English–made. [70]
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related to: black lead polish for glass bottles and jars