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Gas Mixtures and Concentrations

Gas Mixtures and Concentrations

Gas Mixtures and Concentrations

(OP)
The technical specification we have received from our customer says that 50 litre bottles will be supplied with a mixture of gas A and gas B at 200 barg.  We also know that gas A will be 4.5% by volume and gas B 95.5% by volume.  The temperature is also known.

How do I go about calculating what the concentration of each gas is in ppm?

I started off by using partial pressures, but ended up going round in circles.

Thanks in advance.

Fred
 

RE: Gas Mixtures and Concentrations

1% is 10,000 ppmV.  

You would have to share your gas species to get help on ppmM since my Periodic Table doesn't have an "A" and boron is not a gas at 200 barg and room temp.

David

RE: Gas Mixtures and Concentrations

Just one small addition to what zdas04 gave you: 1% by volume is 10,000 ppm by volume.

If you want to know ppm by weight, then we need to know the molecular weights of your gases A and B.

Milton Beychok
(Visit me at www.air-dispersion.com)
.

 

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