Accession Number:

AD0621282

Title:

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

Descriptive Note:

Corporate Author:

ROYAL INST OF TECH STOCKHOLM (SWEDEN) DEPT OF INORGANIC CHEMISTRY

Personal Author(s):

Report Date:

1964-01-13

Pagination or Media Count:

3.0

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 NbOH5, --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 SSE 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

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE