| 释义 |
bleaching powder
bleach·ing powder (blē′chĭng)n. A powder containing calcium chloride and calcium hypochlorite, used in solution as a bleach. Also called chloride of lime, chlorinated lime.bleaching powder n (Elements & Compounds) a white powder with the odour of chlorine, consisting of chlorinated calcium hydroxide with an approximate formula CaCl(OCl).4H2O. It is used in solution as a bleaching agent and disinfectant. Also called: chloride of lime or chlorinated lime bleach′ing pow`der
n. a white powdered mixture of calcium hypochlorite used as a commercial bleach. Also called chloride of lime. Thesaurus| Noun | 1. |  bleaching powder - a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfectchloride of lime, chlorinated limeblanching agent, bleaching agent, whitener, bleach - an agent that makes things white or colorless |
Translationsbleaching powder
bleaching powder, white or nearly white powder that is usually a mixture of calcium chloride hypochlorite, CaCl(OCl); calcium hypochlorite, Ca(OCl)2; and calcium chloride, CaCl2. Sometimes called chloride of lime, it can be prepared by reacting calcium hydroxide or slaked lime, Ca(OH)2, with chlorine gas, Cl2. It is used as a strong bleaching agent, as a disinfectant, and in making Javelle waterJavelle water
or Javel water
, Fr. eau de Javelle, aqueous solution of sodium or potassium hypochlorite. It was originally made near the French town of Javelle (now part of Paris) and was the first chemical bleach, a use first demonstrated by C. L.
..... Click the link for more information. . Bleaching powder was first produced in 1799 by Charles Tennant in Glasgow, Scotland.bleaching powder[′blēch·iŋ ‚pau̇d·ər] (materials) A mixture of calcium hydroxide, calcium chloride, and calcium hypochlorite that is used as a bleaching agent. Also known as chloride of lime; chlorinated lime. bleaching powder a white powder with the odour of chlorine, consisting of chlorinated calcium hydroxide with an approximate formula CaCl(OCl).4H2O. It is used in solution as a bleaching agent and disinfectant bleaching powder
chlo·ri·nat·ed limea mixture of varying proportions of complexes of chlorine with calcium oxide and calcium hydroxide. Contains 24-37% available chlorine. Decomposes in moist conditions to liberate chlorine. Strong irritant due to chlorine vapors. Used for disinfecting drinking water and sewage; in the bleaching of wood pulp, linen, cotton, straw, oils, soaps, and laundry; as an oxidizer; in destroying caterpillars; and as a decontaminant for mustard gas and similar substances. Synonym(s): bleaching powderbleaching powder
Synonyms for bleaching powdernoun a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfectSynonyms- chloride of lime
- chlorinated lime
Related Words- blanching agent
- bleaching agent
- whitener
- bleach
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