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A white powder with a slight Chlorine smell. Dichlorodimethylhydantoin is a chlorinating agent that is used in powder type household bleaches (Sage's Dry Bleach, Colgate's Pruf). When kept dry, it has a long shelf life with only minor loss of chlorine. On contact with water, it forms Hypochlorous acid that acts as a Bleaching agent and Disinfectant.
Synonyms and Related Terms
1,3-dichloro-5,5-dimethylhydantoin; dichloratin; 2,4-Imidazolidineione; DDH; Dactin; Halane; household laundry bleach
- Irritating to eyes, nose, skin and lungs. Combustible with the evolution of chlorine.
- Fisher Scientific: MSDS
Physical and Chemical Properties
- Soluble in chlorinated solvents, alcohols and benzene.
- Slightly soluble in water forming a solution with pH about 4.4
|Melting Point||132 C|
|Molecular Weight||mol. wt. = 197.02|
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 3115