Experiments on the Comparative Effects of Solutions of Magnesia, of Calcerous Earth, and of Alum, in Dying Cloths of Various Kinds with Madder
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A short 1798 report of experiments comparing magnesia, calcareous earth (lime) and alum, each dissolved in sulphuric, nitric and muriatic acids, as mordants for dyeing wool, silk, linen and cotton with madder. Wool and silk took a brown color and linen and cotton a pale red. The author found alum gave brighter, finer colors than the other earths, so it should be preferred. He also suggests testing barytes and manganese, which he could not try.
- Type
- Article
- Date
- 1798
- Language
- English
- Pages
- 4
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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