Monoamine
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What is needed to store synthesised gasses in gas cylinders
I'm planning to make some MeCl, for a future experiment. The problem is that MeCl is a gas above -24.2 C.
So in order to store it, I will need to get it into a gas cylinder.
But I'm not sure on how to do this this, since it would require some way of pressurizing the gas into the cylinder.
My best guess is to connect an air-compressor to the glassware in which I'll be generating the MeCl, and then connecting the compressor to the gas
cylinder.
Has anyone tried this before? Are there any other ways of doing this?
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Tsjerk
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Condense it with dry ice, there is no need to pressurize it, it will do so by itself. Have a look at the YouTube videos of Thy Labs.
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Mateo_swe
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If you have a suitable container with a outlet and inlet valve (that can handle the pressures) maybe you can just fill it up with liquid MeCl and
close it.
This must be done at below -24.2°C obviously and when the temps rise to roomtemp the MeCl will pressurize the container and then can be used as a gas
cylinder.
Make sure the container is capable of the developed pressure or you will have MeCl leaking or even worse.
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Rainwater
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I strongly advise against using a one time use propane can refiller value, even if the fittings are standard 1/4 ntp 250 psi rated and come apart reasonably well, the one time use
tanks made of stretched steel designed for +500psi failure, with a 250 psi schrader pressure relief valve, are designed and manufactured at great
expense so they can be filled with pennies worth of product and discarded as all things should be.
Check chemical compatibility with 4130 steel alloy
[Edited on 13-9-2023 by Rainwater]
"You can't do that" - challenge accepted
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Texium
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Thread Moved
20-11-2023 at 06:31 |
Dr.Bob
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When I worked with Ed, he made many gases, and always condensed them into cylinders via dry ice cooling, and then screwed the valve into them to seal
them. That worked for freons, halons, and many fluorocarbons. The short stout cylinders that aldrich uses for its gases/reactives are quite good,
and work well. The long thin ones are much harder to work with (like what they ship CO, HCl, and ethylene in).
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