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/sci/ - Science & Math

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7689457 No.7689457 [Reply] [Original]

What's a good quick experiment to differentiate between methanol, ethanol, and propanol? I'd prefer not to measure evaporation times.

>> No.7689458

>>7689457
Density?

>> No.7689461

>>7689458
Let's assume we have a sample of one of the three alcohols, so we don't have anything to compare it to.

All three are miscible, right?

>> No.7689462

Mass of a 1ml solution.

>> No.7689465

>>7689462
no guarantee the solutions have a uniform molarity.

>> No.7689472

>>7689465
If it's a solution in water, you could determine the amount of water by dissolving a substance of known solubility in water, but insoluble in alcohol. Measure the amounts you put in and keep adding until the solution is saturated. Then work from there.