Question by Phoenix: What are the properties of CrCl2 and CoCl2?
I have to determine the identity of 12 solutions of .1M solutions and I am getting through it very slowly. I am confused on this part, i was looking around and found that CoCl2 is a pink color when it is in contact with HOH, and we had 1 pink colored solution. Now I have looked around and found the only other colored thing we used might have been CrCl2, but it says it is violet colored when in contact with water, but the only other colored solution was a blue/green colored solution. Could this blue/green solution be CrCl2 or is it something else?
Best answer:
Answer by zircalium
CrCl2 forms blue solutions. Apparently these are readily oxidized by air to give Cr3+, which is green, so this could explain the blue-green color. The solid compound (presumably anhydrous) is white. Perhaps a hydrate is violet?
Add your own answer in the comments!
Tags:CoCl2, CrCl2, Green, Properties, Solutions
0 comments:
Post a Comment