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Upender
13-06-2014, 07:39 AM
Hi, I am looking for pH (acid-base scale) values for following refrigerants: R22, R134a, R404A, R407C, R410, R507, R717 (NH3), R744 (CO2). Where can I get the information? Thanks in advance!

Best Regards,
Upender

FreezerGeezer
13-06-2014, 09:57 AM
Probably from the manufacturers?
Sorry, I don't know of any other source of the info offhand.

Rob White
13-06-2014, 12:18 PM
Probably from the manufacturers?
Sorry, I don't know of any other source of the info offhand.

I had a look on their data sheets and I can't find any reference to PH
so it looks like the only way you will find out is through the manufacturer.

Rob

.

Brian_UK
13-06-2014, 02:21 PM
Somewhere between 5.5 and 6.5 according to this information source.
http://www.refrigtech.com/Knowledge_Center/knowledge_acid.html