Bromate

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The bromate ion is . A bromate is a compound that contains this group. Examples of bromates include Sodium bromate () and Potassium bromate ().

Bromates are formed when ozone and bromide ion react according to the following reaction:

+ →

This reaction occurs in water systems where bromide is dissolved in water and ozone is used to disinfect the water, especally under high presssures. This reaction is undesirable because bromate is a carcinogen. The pressence of it in Coca Cola's Dasani forced a recall of that product. Proposals to reduce bromate formation include switching to atmospheric tank contact systems, lowering the water pH to between 5.9 - 6.3, and limiting the doses of ozone.

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