What are these white particles?
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This post was last edited by sunjl1981 on 2013-1-6 at 20:12. We use brine; many white, regular-shaped particles appear in the small containers inside the clarification tank. These particles are insoluble in water and also poorly soluble in acids; they resemble urea in shape. We use CaCl2 to remove sulfate ions. CaCl2 is produced by reacting stones high in calcium with hydrochloric acid, and pH is adjusted using CaCO3. After clarification, it is added to the clarification tank. Could anyone help analyze this? This post was last edited by yzhms on 2009-3-3 at 20:10. ] # ， ， &
Guess, is it calcium sulfate? I don’t quite understand; please continue downstairs……
Observe the flame test in a colorless flame; the brick-red color corresponds to calcium sulfate.
Thank you all; I’ll have the analysis lab handle it tomorrow
What color would it be if it were calcium carbonate?
It should be calcium sulfate. Calcium carbonate generally forms scale on the surface.