December 07, 2022, 01:21:01 AM
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Topic: Any signs of nitromethane degradation?  (Read 384 times)

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Offline tkffuwnj

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Any signs of nitromethane degradation?
« on: October 27, 2022, 04:25:08 PM »
Hello. I am trying to set up a reaction using nitromethane. The one I have in my lab is pretty old and show a slight yellow color. Also the pH is lower than 5 (based on pH strip). Can these two signs tell if my nitromethane is good or bad?

Offline Ebbe Loos

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Re: Any signs of nitromethane degradation?
« Reply #1 on: November 02, 2022, 06:38:52 AM »
Hiii

The color isn't always a good indicator; a little impurity/degradation might give a strong color although the whole sample itself is quiet pure.

Depending on your reaction, it still might be okay. Otherwise, i would suggest some form of purification?

Also, A H-NMR might give you some insight if the product is pure!

Good luck!

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