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Journal of Solution Chemistry

, Volume 9, Issue 11, pp 885–894 | Cite as

Stability constants of iron(III) borate complexes

  • Jane A. Elrod
  • Dana R. Kester
Article

Abstract

The ultraviolet absorbance data from experiments conducted at constant pH and total iron concentration but variable B(OH)3 concentration were used to determined the stability constants of FeB(OH) 4 2+ and Fe[B(OH)4 2 + at 25°C and an ionic strength of 0.68. The estimates obtained were *β1 = 1.0 ± 0.2 × 10−2 and *β2 = 2 ± 1 × 10−5, respectively (uncertainties are two times the standard error of the estimates). A calculation of the extent of iron(III) borate formation in ocean water at pH 8.2 shows that iron(III) borates are not a significantly large component of iron(III) speciation in seawater.

Key words

Ferric iron ferric borate stability constant ultraviolet spectroscopy complexes 

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Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • Jane A. Elrod
    • 1
  • Dana R. Kester
    • 1
  1. 1.Graduate School of OceanographyUniversity of Rhode IslandKingston

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