Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok

Authors

  • Roswita -
  • Hamzar Suyani
  • Safni -

DOI:

https://doi.org/10.25077/jrk.v2i1.96

Abstract

 

ABSTRACT

 

A simple, rapid and accurate Spectrophotometric method described to the determination of vanadium in ore using sodium tungstat as a complexing agent. The method is based on the oxidation of sodium tungstat to form a yellow colored on reaction with vanadium (V), having maximum an absorption occurred at 403 nm. The relative standar deviation of the method for 8 mg/L vanadium (n=11) was 0.24%, and the molar absorptivity is 2.026103 L mol-1cm-1 and sensitivity Sandell is 2.5  10-2 mg cm.2 . The recovery test is 99.47%.  The effect of ion interfering Fe  (element large amount in ore) on determination is describe. The general procedure which was developed is suittable for determination of 0-20 mg/L of Vanadium and should be applicable to variety of ore sample.

 

Keywords : vanadium, spectrophotometric, sodium tungstat, ore

Author Biographies

Roswita -

Hamzar Suyani

Safni -

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Published

2015-02-11

How to Cite

-, R., Suyani, H., & -, S. (2015). Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok. Jurnal Riset Kimia, 2(1), 51. https://doi.org/10.25077/jrk.v2i1.96

Issue

Vol. 2 No. 1 (2008): September

Section

Articles

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