ON THE HYDROLYSIS OF NIOBATES IN 3M K(CL) MEDIUM,

Abstract

The primary object of the work was to decide whether hexa- or pentaniobates predominate in solution. A series of emf-titrations were carried out in which the total niobium concentration, B, was kept constant whereas the total OH(-)-concentration in excess over Nb(OH)5, --H, was varied. The variation of the activity factors was minimized by adding KCl to the solutions and keeping (K(+)) = 3 M. (OH(-)) was obtained from the emf of the cell --Pt, H2 (1 atm)/ niobate solution S/SE + where SE is the reference electrode. From B, --H and (OH(-)) the average negative charge per Nb atom was obtained as Z = (--H--(OH(-)))/B. (Extracted)

Document Details

Document Type
Technical Report
Publication Date
Jan 13, 1964
Accession Number
AD0621282

Entities

People

  • Georg Neumann

Organizations

  • Royal Institute of Technology

Tags

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemical Reactions
  • Decomposition
  • Dissociation
  • Electrical Equipment
  • Electrodes
  • Hydrolysis
  • Lysis
  • Titration

Fields of Study

  • Chemistry

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.
  • Mathematics or Statistics