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This is a simple test to determine whether organic oxygen compounds are present in propylene dichloride (1,2-dichloropropane) and carbon tetrachloride in concentrations greater or less than 0.1 wt-% organic oxygen, using propylene glycol as the organic oxygen reference. Nitrogen and sulfur compounds interfere, while diaryl ethers give a false negative test. These are not serious limitations, since none of these classes of compounds is likely to be present in commercial propylene dichloride or carbon tetrachloride.
UOP712-71(2006), Ferrox Test for Organic Oxygen Compounds in Propylene Dichloride and Carbon Tetrachloride, ASTM International, West Conshohocken, PA, 2006, www.astm.orgBack to Top