Hard and Soft Acid-Base Behavior in Aqueous Solution: Steric Effects Make Some Metal Ions Hard:: A Quantitative Scale of Hardness-Softness for Acids and Bases

• Robert D. Hancock ^[1] ; Arthur E. Martell ^[1]
  1. [1] University of the Witwatersrand

     University of the Witwatersrand

     City of Johannesburg, Sudáfrica

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 73, Nº 7 (July), 1996, págs. 654-661
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The idea of hard and Soft Acids and Bases (HSAB), developed by R. G. Pearson some 30 years ago, has been used as a unifying principle in several texts. In spite of this, HSAB has remained qualitative and largely intuitive. In this article, the behaviour of HSAB in aqueous solution is addressed. A quantitative scale of hardness-softness for acids and bases is presented also.