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Topic: Any instrument that allows a reaction to take place after the system is sealed?  (Read 1090 times)

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Offline monotonechameleon

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Any instrument that allows a reaction to take place after the system is sealed?
« on: March 15, 2020, 03:43:17 AM »
I am designing an experiment that requires a metal acid reaction to take place after a flask is sealed to prevent loss of hydrogen. Since I am using metal powder, I cannot use a magnet to slide it down the flask. Is there any way to either add the acid or the metal without losing any gas?
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Offline chenbeier

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Re: Any instrument that allows a reaction to take place after the system is sealed?
« Reply #1 on: March 15, 2020, 07:08:57 AM »
You have a container inside the metal. On top a second one connecting with a valve. In this you fill the acid and seal it. If you open the valve the acid drops on the metal.
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Offline Enthalpy

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Re: Any instrument that allows a reaction to take place after the system is sealed?
« Reply #2 on: March 16, 2020, 06:52:49 AM »
Or you tilt the container.

I didn't grasp why a magnet shouldn't act on powder. If a magnet attracts the solid metal (iron and few more), it attracts the powder too.

Please compute the hydrogen pressure in the flask before experimenting.
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