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grizwold50
03-10-2017, 04:06 PM
Hi Guys,

Hope you can help me.

Can anyone tell me the purity of R740 Argon refrigerant, I have brought Argon N-6 grade which is 99.999995% pure and is bloody expensive. which by all accounts is pretty pure.

Does anybody know if R740 is purer than N-6 grade.

Kind regard's

Graham

chemi-cool
03-10-2017, 05:48 PM
Argon N-6 is 99.9999 pure.
They are the same.

Brian_UK
03-10-2017, 07:43 PM
The number refers to the purity.

The Linde booklet shows the different grades if you want it in writing, see the Argon page.

https://www.google.co.uk/url?sa=t&source=web&rct=j&url=https://www.linde-gas.com/internet.global.lindegas.global/en/images/Gases-and_Applications_eBook_144dpi17_168809.pdf%3Fv%3D2.0&ved=0ahUKEwji9cWN49TWAhXhAMAKHdVvCcIQFggoMAE&usg=AOvVaw0hVU7L_3jP__ym5fMtpCwO