Color of sulfuric acid
Thread Content
Frequently, manufacturers of lead, zinc, and copper smelting products report that the color of the resulting acid is impure, appearing milky white, yellow, red, or soy sauce-colored. . . . . . Based on your experience, what are the possible reasons for abnormal coloring of sulfuric acid? Your answer is what we are all looking forward to.
Is the yellowing of sulfuric acid caused by nitrogen oxides?
It is likely caused by metal impurities such as iron, lead, zinc, and copper in the raw materials
The soy sauce color may be caused by the carbonization of organic substances by concentrated sulfuric acid; filtering out the carbon might make the color clearer.
At the moment, dealing with soy sauce color seems very difficult; filtration may not be a viable solution.
Vacuum distillation is possible, but it requires a bit more energy.
This question is too difficult:lol
Experts find it difficult; the problem still needs to be solved somehow. As long as one’s spirit doesn’t slump, there are always more solutions than difficulties. :P
Sulfuric acid isn’t profitable to begin with; with this whole situation, one will surely suffer huge losses.
In the production of smelting acid, it’s important to do a good job in dust purification; dust and organic substances entering the acid can cause various color changes