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English Translations » 氯碱技术圈 » Why does the color turn brown after light alkali is dissolve

Why does the color turn brown after light alkali is dissolved in water?

2017-12-04View Original

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I ordered a batch of mild alkali; after it was dissolved in water, the color turned brownish-yellow. Could you tell me what is wrong with the product in this regard?
Reply #22018-01-30
It’s probably because too much sodium sulfide was added; there is elemental sulfur present. Sulfide alkali has been formed.
Reply #32018-08-30
Is this color reduction? It seems that soda ash already has a color of its own; it’s not pure white

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Translated at 2026-07-23 12:04:28

Original: https://bbs.hcbbs.com/thread-1876118-1-1.html

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