I tottally agree that ez is a scam. I've worked, in my own drug lab, with lots of acids and formaldehyde. H2S04 is nasty but why would mixing it with a touch of formaldehyde be any more dangerous then using it to clean drains? The hardware store stuff is colored because of the decomposition of the H2SO4, not dye. Any dye would likely be consumed by the acid. And sure you can get formaldehyde, order it online for embalming animals or something. It doesn't stink that much either although a lot of it will make you sick (but you get better). It works with just plain sulphuric acid too, you don't even need formaldehyde.
The marquis reagent was designed to test pure substances, pills are a mixture of lubricants, filler/starch, drug. Because of this, the m.r. will give alot of flase positives and false negatives. Number of false results = false pos. + false negs. What really bothers me is that ez seems to represent it as something designed to testpills. bull.. And did I hear somewhere they pateneted something? Give me a break..
I think there should be somekind of effort to start a do-it-yourself very accurate qualitative testing at home project. Something with off the shelf or nearly off the shelf materials. Focus on melting points and tlc.
