2. Chemical manufacturing process
2.1 Process principle
This involves chlorinating soda with chlorine gas. There are two chemical processes for manufacturing bleach.
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Standard procedure
It reacts chlorine with a 20% soda solution and produces bleach with 13% active chlorine (previously known as "50˚ chlorometric"). All the sodium chloride by-product of the reaction remains dissolved in the solution.
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"High Title" process
This original process, patented by Arkema, involves reacting chlorine with a 50% soda solution to produce bleach containing 24-26% active chlorine (previously known as "105˚ chlorometric"), in which half of the salt is removed by precipitation....
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Chemical manufacturing process
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