Modification of Benning's infrared method permits determination of water in Freon-12 refrigerant contaminated by as much as 1% oil. Quantity of oil is determined at the 2.34μ H band. The sum of water and the water equivalent value of oil is determined at 2 67μ. Difference between these two is the true moisture content of Freon-12®.
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References
1.
BenningA. F.EbertA. A. and IrwinC. F.Anal. Chem.19, 867–8 (1947).
2.
Ibid. Refrig. Eng.55, 166–70 (1948).
3.
Kinetic Chemicals, Inc., Technical Paper No. 8, March 25, 1931.
