June 21, 2024, 10:42:55 PM
Forum Rules: Read This Before Posting

Topic: Any signs of nitromethane degradation?  (Read 1147 times)

0 Members and 1 Guest are viewing this topic.

Offline tkffuwnj

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-1
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

  • Regular Member
  • ***
  • Posts: 16
  • Mole Snacks: +2/-1
Re: Any signs of nitromethane degradation?
« Reply #1 on: November 02, 2022, 06:38:52 AM »

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!

Sponsored Links