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Definition: chlorate from Merriam-Webster's Collegiate(R) Dictionary

(1823) : a salt containing the anion ClO3 〈⁓ of potassium〉


Summary Article: chlorate (ClO3)
from Processing Water, Wastewater, Residuals, and Excreta for Health and Environmental Protection: An Encyclopedic Dictionary

A salt of chloric acid (HClO3), i.e., containing the chlorate ion; the term chlorates may include other ions: hypochlorite (ClO-), chlorite (ClO-), and perchlorate (ClO-), all strong oxidizing, disinfecting, and bleaching agents. They also can form explosive mixtures with other chemicals. Chlorate is a potential contaminant of drinking water when chlorine dioxide (ClO2) is used for disinfection; it is formed from the hypochlorite ion or hypochlorous acid (HClO):

Chlorate ions are also formed during the decomposition of bleach or sodium hypochlorite (NaOCl) or in ozonated water that contains a chlorine residual. Chlorates may cause hemolysis, methemoglobinemia, renal failure, or even death at high concentrations, e.g., 71 mg/kg of body weight. See also perchlorate.

Copyright © 2008 by John Wiley & Sons, Inc. All rights reserved.

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