Hx4

[Nymagee]

Hi boys and girls - I’ve got a freeze dryer I’m working on and the refrigerant is labeled as HX4 – does anyone have the makeup or the “R” number for it – Regards,nymagee

[chemi-cool]

http://detector-cooling.web.cern.ch/Detector-Cooling/data/Refr.ptchart2.pdf

[Brian_UK]

Make up here...

http://findarticles.com/p/articles/mi_m0BPR/is_11_18/ai_80369262/pg_6/
(search web page for HX4)