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Extraction of plati...
Extraction of platinum(IV) with nonylthiourea dissolved in chloroform from hydrochloric acid media
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- Uheida, Abdusalam (author)
- KTH,Materialvetenskap
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- Zhang, Yu (author)
- KTH,Kemi
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- Muhammed, Mamoun (author)
- KTH,Materialvetenskap
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(creator_code:org_t)
- Informa UK Limited, 2003
- 2003
- English.
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In: Solvent extraction and ion exchange. - : Informa UK Limited. - 0736-6299 .- 1532-2262. ; 21:6, s. 827-840
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The extractant nonylthiourea (NTH) in chloroform has been investigated for the extraction of Pt(IV) from chloride solutions at ionic strength of I = 4.0 M and at 22degreesC. It has been found that chloride concentration has a negative effect on the extraction equilibrium, while proton concentration has no effect. The numerical analysis of the equilibrium data has shown that the extraction of PtCl62- with NTH can be interpreted by the formation Of PtCl4(NTH) and PtCl4(NTH)(4) species with their respective equilibrium constants of log K-11 = 5.06 +/- 0.01 and log K-14 = 14.12 +/- 0.04 in 4 M HCl. FTIR spectra of the free NTH and the NTH-Pt(IV) complex were studied to obtain some information on the interaction between Pt(IV) ions and NTH molecules.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- di-ortho-tolylthiourea
- solvent-extraction
- group-metals
- gold
- complexes
- thiourea
- diphenylthiourea
- derivatives
- separation
- palladium
- Materials chemistry
- Materialkemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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