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Uploaded by charlieehler on Jul 22, 2008
I conduct a simple observational test of adding ferrous sulfate and lime to my water samples.
Science & Technology
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What? How about a real (quantitative) test for residual hexavalent chromium? But that would cost money ;-(
brathat 2 years ago
Did you try adding another1/4tsp to the 1st batch? how much does it take to make it totally clear?
audiegates 3 years ago
I just read that ascorbic acid (vitamin c) reduces Cr(VI) to Cr(III). Have you tested that?
yiannismihail 3 years ago
Impressive!
MetalGearSTEPH 3 years ago
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What? How about a real (quantitative) test for residual hexavalent chromium? But that would cost money ;-(
brathat 2 years ago
Did you try adding another1/4tsp to the 1st batch? how much does it take to make it totally clear?
audiegates 3 years ago
I just read that ascorbic acid (vitamin c) reduces Cr(VI) to Cr(III). Have you tested that?
yiannismihail 3 years ago
Impressive!
MetalGearSTEPH 3 years ago