New spectrophotometric thiocyanate determination of iron in metals, alloys, acids and salts

✍ Scribed by C.L. Luke

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 713 KB
• Volume: 36
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(66)80013-2

✦ Synopsis

In spcctrophotometric

analyses it is often desirable to isolate the metal to be determined from interfering metals by a suitable solvent extraction separation before proceeding to the analysis. If the extracted metal is obtained as a colored chelate or salt in the immiscible organic solvent it is often possible to make a direct spectrophotometric analysis. When the extract is colorless or only slightly colored, it is usually ncccssary to recover the metal from the solvent before attempting the analysis. However, it is sometimes possible to add to the organic extract, a suitable reagent that will react with the metal to form a soluble, colored compound, capable of being measurecl'spectrophotomctrically.

In recent work along these lines in these laboratories several of the well known, relatively specific, solvent extraction separations of metals have been investigated. The first results from this work have been reportedr. The present paper is concerned with the analysis of iron. DOLL AKI) SPECKER~