When the free chlorine content in high-purity hydrochloric acid is 100PPM, can problems be detected visually?
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This post was last edited by sunjl1981 on 2013-1-6 at 22:01. When the free chlorine content in high-purity hydrochloric acid is around 100PPM, can visual inspection of the color of the hydrochloric acid reveal any issues? # hcbbs
This post was last edited by limingshuguang on 2010-1-2 at 11:21. It’s not clear, but secondary refining can no longer be used
It’s not visible; only laboratory analysis can determine it
It’s definitely impossible to tell; precise analysis is required
If this can be seen, then what kind of eyes are these? What’s the use of those instruments for analyzing active chlorine or ORP?
It cannot be determined by eye based on color; only through analysis and sample making can it be ascertained
It cannot be determined by visual inspection; analytical methods are required.