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RE: We Created Plastic. We can't do without it. Now, We're Dying in it: A Study of how Degrading Plastic Emits Greenhouse Gases

in #stemng • 6 years ago

Useful topic. I would spend time to present similar material to students in my lab. It's very important to understand that all plastics aren't alike! Also, I talked about solvent effects on plastic labware.

6 years ago in #stemng by
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     6 years ago 

    Ask me some day about how one of my labbmates found out that methanol attacks acrylic.

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     6 years ago (edited)

    I always used this rule (weak > strong vs most common plastics):
    H2O < 70% isopropanol < methanol < ethanol < acetonitrile < ether, THF < acetone < benzene, toluene, hydrocarbons << dimethylformamide (DMF), N-methylpyrolidone (NMP). I broke a gallon jug of NMP and it turned the special lab floor tiles to semisolid putty!

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     6 years ago 

    I'm going to have to mention this. One of our lab mates did not understand the difference between denatured and non-denatured. Some of the denaturants in that batch were benzene, toluene, and naptha. There's now some plasticware we no longer need to disinfect...

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       6 years ago 

      Thanks for the comment..You should have a nice day