Spectrophotometric determination of molybdenum by extraction of a green molybdenum(V) species
A simple method is described for the rapid spectrophotometric determination of molybdenum in samples containing 1 to 80% Mo, with satisfactory accuracy. Molybdenum is reduced width excess of hydrazine sulfate in boiling 5.5M hydrochloric acid and extracted with isoamyl acetate from 7M hydrochloric acid. The green color is measured at 720 nm against a reagent blank. Beer's law is obeyed over the range 0.08 to 5.4 mg of mo1ybdenum per ml. Interference from iron and copper is removed by adding stannous chloride and thiourea respectively in slight excess. Titanium, vanadium, niobium, chromium, tungsten, nickel, uranium, and antimony do not interfere even in large amounts. Only cobalt interferes seriously. (auth)
- Research Organization:
- Kurukshetra Univ., India
- NSA Number:
- NSA-29-023929
- OSTI ID:
- 4334265
- Journal Information:
- Talanta, v. 20, no. 11, pp. 1207-1210, Other Information: Orig. Receipt Date: 30-JUN-74; Bib. Info. Source: UK (United Kingdom (sent to DOE from))
- Country of Publication:
- United Kingdom
- Language:
- English
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