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单词 cupferron
释义 cupferron Chem.|ˈkʌpfɛrən, ˈkjuːp-|
[G. (O. Baudisch 1909, in Chem. Zeitung XXXIII. 1298), f. L. cup-rum copper + ferr-um iron + -on.]
A brownish-yellow crystalline compound, C6H5N(NO)ONH4, used as a quantitative precipitant for iron, titanium, zirconium, and certain other metals in acid solution and formerly as a reagent for copper.
1910Chem. Abstr. IV. 557 Cupferron..forms complex salts with Cu and Fe, and may be used in the quantitative separation of Cu and Fe from nearly all other metals.1939Thorpe's Dict. Appl. Chem. III. 335/1 Nitroso-β-phenylhydroxylamine (cupferron) furnishes insoluble red and white complexes with ferric and cupric salts respectively.1963Skoog & West Fund. Anal. Chem. ix. 195 The ammonium salt of phenylnitrosohydroxylamine, better known as cupferron, is a somewhat more selective organic reagent.
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