Spectrophotometric determination of the first protonation constant of orthovanadate |
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| Authors: | Cruywagen J J Heyns J B |
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| Affiliation: | Department of Chemistry, University of Stellenbosch, Stellenbosch 7600, Republic of South Africa. |
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| Abstract: | The first protonation constant for VO(3-)(4) has been determined spectrophotometrically at 25 degrees in 1M sodium chloride and found to have the value log K = 13.29 +/- 0.01. Individual absorption spectra for VO(3-)(4) and HVO(2-)(4) have been calculated (for the range 218-350 nm) from experimental absorbance measurements. |
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