Re: Bright green gas

Posted by Fish'n Jim On 2018/7/31 12:18:45

Since that link was rather old, I've decided to conduct a little experiment with today's pump gas. I got 89 ethanol, 89 non-ethanol(free), and will spike one ethanol with a little (~1%) H2O. And use equal lengths of soft copper tubing as the test specimen. I'll stick one brass fitting in one as a control.
It's the rage to use the EZ bend cupro-nickle tubing today, but I worked for the guys pushing nylon 12 fuel line and we did gas testing in the R&D lab. I(technology) had to store/furnish the gas and it was all inert so as not contaminate the fuel.
Of course, I don't have the lab access I once had, so we'll have to forego analyses and look at color/specimen condition only. I'll post the pictures when there's some results.
organo-metal cluster complexes absorb in the <400 nm region and is what produces the green or whatever color it's causing. Easy to run on the UV-vis.