Originally Posted by Delta9
What hardwear store can you get NaOH from? Home-Depot sucks? Vitamin suppliments have compounds in them too. They usually have sugar and other stuff in them but they might be able to be separeated. Like the steric acid could be extracted with toluene. and you would have the suppliment minus the steric acid. I don't know about the other impurites like TiO2. The TiO2 might be able to be eliminated electrolytically, but you need to figure out how to make a electrochemical cell which could be done but it would be a pain in the ass.
An Iodide suppliment might work to test for chlorine in bleaching powder. If you made a solution of bleaching powder and water and added starch and heated it so the starch dissolved you could react the solution with the iodide in the suppliment and if there was Cl2 in the bleaching powder it would follow:
Cl2 + 2I- ------> 2Cl- + I2
The iodine producted would then react with the starch to form a blue color indicating the presence of Cl2 in the bleaching powder. From the bleaching powder you could then make chloroform. It would just be a good lab exercise.
The chloroform could then be used in other extraction partitions.
