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Thats the standard test for oxalates:
Dissolve a bit of your test-substance in a few ml of water. Now add some calcium chloride soultion and a white precipitate will form. Then you have to filter of and dissolve the precipitate in dilute sulfuric acid. Add a dropp! KMnO4-solution. Start to warm up the solution. If the permangante colour disappears when the solution is getting hotter your substance contained Oxalate.
Testing for kations should be possible with flame colouration.
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In Topic: NC stars
06 December 2010 - 05:31 PM
Wow those stars where realy nice. 
Would you mind telling me the comp? What was the concentration of your NC-laquer?
Would you mind telling me the comp? What was the concentration of your NC-laquer?
