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bleach |
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bleachSolid or liquid chemical compound used to whiten or remove the natural colour of fibres, yarns, paper, and textile fabrics. Sunlight was the chief bleaching agent up to the discovery of chlorine in 1774 by Karl Wilhelm Scheele (b. 1742—d. 1786) and the demonstration of its bleaching properties in 1785 by Claude-Louis Berthollet (b. 1748—d. 1822). In textile finishing, the bleaching process is used to produce white cloth, to prepare fabrics for other finishes, or to remove discoloration. Chlorine, sodium hypochlorite, calcium hypochlorite, and hydrogen peroxide are commonly used as bleaches. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Walking under a carob tree the other evening, I smelled a strong scent of chlorine bleach. Then they treated each sponge in one of five ways: 1) soaked it for 3 minutes in a 10 percent chlorine bleach solution, 2) soaked it in lemon juice or deionized water for 1 minute, 3) heated it in a microwave for 1 minute, 4) placed it in a dishwasher operating with a drying cycle, or 5) left it untreated. Mix two ounces of household chlorine bleach in two gallons of warm water. |
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