# Chemistry - How to test for methanol?

## Solution 1:

Sorry @ JavaScriptCoder, but I've to agree with aventurin. I'd say idoform test should have been done in a certified laboratory because of safety concern. However, I think fractional distillation might be helpful for this identification (or simply verification). OP can do this at home since he/she has done simple distillation at home. Ethanol/water binary system give an azeotrope, which boils at $$\pu{78.1 ^\circ C}$$ and gives $$95\%$$ ethanol. Methanol, on the other hand, make no azeotrope with water, and boils at $$\pu{64.7 ^\circ C}$$. The temperature range of $$\pu{13.4 ^\circ C}$$ need only about ≤20 theoretical plates to separate. If you get first distillate below, say, $$\pu{67 ^\circ C}$$, then you got methanol or something other than ethanol. So, don't drink it.