Bleaching
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Three-page excerpt from Dick's Encyclopedia of Practical Receipts and Processes (pp. 175-177) giving numbered receipts 1715-1731 for bleaching and decolorizing. It covers cotton, wool, silk, straw, sponge, feathers, woolen rags, lac, shellac and gutta percha, using lye, chloride bleaching liquor, sours, and sulphurous acid (sulphuring). It also includes a table for diluting bleaching liquor by Twaddell strength and receipts for decolorizing charcoals.
- Type
- Article
- Language
- English
- Pages
- 3
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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