Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok
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 absorptio...
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Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas
2015
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oai:doaj.org-article:c3ac14fb21c74c88b9bb5444e59290eb2021-12-02T11:35:32ZPenentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok1978-628X2476-896010.25077/jrk.v2i1.96https://doaj.org/article/c3ac14fb21c74c88b9bb5444e59290eb2015-02-01T00:00:00Zhttp://jrk.fmipa.unand.ac.id/index.php/jrk/article/view/96https://doaj.org/toc/1978-628Xhttps://doaj.org/toc/2476-8960ABSTRACT 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, oreRoswita -Hamzar SuyaniSafni -Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas AndalasarticleChemistryQD1-999BiochemistryQD415-436ENIDJurnal Riset Kimia, Vol 2, Iss 1 (2015) |
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Chemistry QD1-999 Biochemistry QD415-436 |
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Chemistry QD1-999 Biochemistry QD415-436 Roswita - Hamzar Suyani Safni - Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| description |
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 |
| format |
article |
| author |
Roswita - Hamzar Suyani Safni - |
| author_facet |
Roswita - Hamzar Suyani Safni - |
| author_sort |
Roswita - |
| title |
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| title_short |
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| title_full |
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| title_fullStr |
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| title_full_unstemmed |
Penentuan Vanadium Secara Spektrofotometri Fosfowolfrovanadat Dalam Batuan Bukit Pianggu Kabupaten Solok |
| title_sort |
penentuan vanadium secara spektrofotometri fosfowolfrovanadat dalam batuan bukit pianggu kabupaten solok |
| publisher |
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas |
| publishDate |
2015 |
| url |
https://doaj.org/article/c3ac14fb21c74c88b9bb5444e59290eb |
| work_keys_str_mv |
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