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English Translations » 氯碱技术圈 » Regarding the content of free chlorine in high-purity acids

Regarding the content of free chlorine in high-purity acids

2019-11-18View Original

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I would like to ask what the free chlorine content is in high-purity acids?
Reply #22019-11-19
In GB 320, the allowable limit for the free chlorine content in high-grade hydrochloric acid is less than or equal to 0.004 (by mass), that is, 0.4 wt% or 4000x10^-6. Determination is carried out by iodometric titration.

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Translated at 2026-07-23 10:38:22

Original: https://bbs.hcbbs.com/thread-2854054-1-1.html

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