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This post was last edited by sunjl1981 on 2013-1-6 at 19:55. Does anyone know the answer? Please let me know, thanks. This post was last edited by yzhms on 2009-4-1 at 12:35. ] # , , &
Chlorine water is a strong oxidizer. pH test strips cannot detect it. It’s usually around 4 to 5. We measure free chlorine. This post was last edited by yzhms on 2009-4-1 12:35.]
Excuse me, upstairs: do you mean that 4–5 refers to the pH value or the free chlorine content? This post was last edited by yzhms on 2009-4-1 12:35.]
The appropriate pH value is around 3-5, which indicates acidity! This post was last edited by yzhms on 2009-4-1 12:35.]
The key question is why it’s necessary to know its pH value. Chlorine water is definitely acidic; with a solubility of 9 g/l for chlorine in water, the pH value is close to 1
pH test strips are meant for measuring trace amounts of acid or weakly acidic solutions; it seems pointless to use them with substances like chlorine water. This post was last edited by yzhms on 2009-4-1 12:36.]
It needs to be measured with a pH meter; it’s around 4, depending on the concentration. Last edited by yzhms on 2009-4-1 12:36.]
Measured with a pH meter. Last edited by yzhms on 2009-4-1 12:37.]
Generally, the pH value of our chlorine water is kept within the range of 2 to 4. To detect whether the free chlorine content in brackish water exceeds the limit.
I don’t know which place the original poster is referring to with chlorine water! I’ve seen all of 1-6!
This Monday, I had the laboratory in my workshop test the pH level of the chlorine solution in the anode liquid discharge tank, and the result was around 2 pH.
The pH value of chlorine water should be controlled within the range of 2 to 4.
Yes, I think 2–4 is correct; it’s the same here as well. This post was last edited by limingshuguang on 2009-4-4 08:56.]
Here it’s from 1.5 to 2.5