bleaching powder

noun

A white powder, a mixture of calcium hypochlorite and calcium chloride, prepared by the action of chlorine on calcium hydroxide, used as a strong bleaching agent and disinfectant. Formula: Ca(ClO)₂.

Similar
chloride of limechlorinated lime
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Meanings

nounbleaching powder (countable and uncountable, plural bleaching powders)

plural bleaching powders

  1. countableuncountableA white powder, a mixture of calcium hypochlorite and calcium chloride, prepared by the action of chlorine on calcium hydroxide, used as a strong bleaching agent and disinfectant. Formula: Ca(ClO)₂.

    Synonyms: chloride of lime, chlorinated lime

Synonyms & antonyms

nounA white powder, a mixture of calcium hypochlorite and calcium chloride, prepared by the action of chlorine on calcium hydroxide, used as a strong bleaching agent and disinfectant. Formula: Ca(ClO)₂.

Similar
chloride of limechlorinated lime

More synonyms by meaning

nouna white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect

Similar
chlorinated limechloride of lime
Broader
bleaching agentbleachblanching agent
Also see
chloride of limechlorinated lime

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Irish púdar tuaracháin
  • púdar tuaracháina mixture of calcium hypochlorite and calcium chloride
Russian хло́рная и́звесть
  • хло́рная и́звесть (xlórnaja ízvestʹ)a mixture of calcium hypochlorite and calcium chloride
Cite this entry
APA

bleaching powder. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/bleaching%20powder

MLA

“bleaching powder.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/bleaching%20powder. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “bleaching powder,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/bleaching%20powder.

Source: bleaching powder on Wiktionary, CC BY-SA 4.0.