HALOGENATED SOLVENTS: —the corrosion effect of trace amounts in an inert gas repurification plant Available to Purchase

The inert‐gas purification plant at Dounreay, the purpose of which is to purify and recycle argon gas returning from alpha‐active dry boxes, was commissioned in 1959 and ran successfully for nearly three years when a sudden reduction in argon purity was noted. Upon investigation it was found that severe corrosion had taken place at the base of the refrigerant dryer units and a hole had opened up between the pure and impure argon flows in the plate‐like construction of the dryer.