| Uffelmann | Jules, German physician, 1837-1894. See: Uffelmann's reagent. (05 Mar 2000) |
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| Uffelmann's reagent | To a 2% solution of phenol in water is added to aqueous ferric chloride until the solution becomes violet in colour; this turns lemon yellow in the presence of lactic acid, assumes an opaline tint in butyric acid, and is decolorised by hydrochloric acid. (05 Mar 2000) |