bleaching powder
noun Chemistry.
a white powder that decomposes on contact with water and has the characteristic odor of gaseous chlorine: regarded, when dry, as a mixed calcium hypochlorite-chloride, used as a commercial bleach for wood pulp, textiles, oils, and soaps, and in laundering as a decolorizer and disinfectant.
Origin of bleaching powder
First recorded in 1850–55
Words nearby bleaching powder
bleach,
bleacher,
bleacherite,
bleachers,
bleachery,
bleaching powder,
bleak,
bleak house,
blear,
bleary,
bleary-eyed
Definition for calcium oxychloride (2 of 2)
British Dictionary definitions for calcium oxychloride
bleaching powder
noun
a white powder with the odour of chlorine, consisting of chlorinated calcium hydroxide with an approximate formula CaCl(OCl).4H 2 O. It is used in solution as a bleaching agent and disinfectant
Also called: chloride of lime, chlorinated lime