Trichloroisocyanuric Acid

[87-90-1] C3Cl3N3O3 (MW 232.41) (powerful chlorinating agent for sulfides,3, 4 amides and imides,5 aromatic compounds,8 ketones,11 and ethers;12 oxidizing agent for secondary alcohols,14 ethers,17 alkenes,19 and oximes20) Alternate Names: TCICA; 1,3,5-trichloro-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; trichloro-s-triazinetrione; isocyanuric chloride. Physical Data: mp 249–251 °C. Solubility: 0.2% in H2O; very sol acetonitrile; sol acetone, acetic acid, ethyl acetate; sl sol benzene, chloroform, methylene chloride. Form Supplied in: white granular solid; widely available for swimming pool use; purity 97–99%; available chlorine 88–91% as measured by iodometric titration.2 Analysis of Reagent Purity: mp or iodometric titration. Purification: can be recrystallized from 1,2-dichloroethane or benzene. Handling, Storage, and Precautions: moisture sensitive, but may be stored under nitrogen at rt for over a year. The dust is extremely destructive to mucous membranes and upper respiratory tract, eyes, and skin. This reagent has been reported to explode after a delay period when in contact with alcohols, amines, or dialkyl sulfoxides, or when contaminated with organic compounds. As with other strong oxidizing agents, it should be added to a solvent.