A determination of the formation constant of SiO(OH)3

Bilinski, Halka; Ingri, Nils (1967) A determination of the formation constant of SiO(OH)3. Acta chemica Scandinavica, 21 . pp. 2503-2510. ISSN 0001-5393

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Abstract

Silioate Solutions of very low total silicie aoid concentration, B, have been studied at 25°C in an ionic medium of 0.5 M Na(C104) by a coulometric titration technique using a hydrogen eleotrode. The average number of OH~ bound per Si(OH)4, Z, has been varied within the limits 0 < Z <, 0.95 and B, between 0.32 x 10~3 M and 1.32 X IO'3 M. In this range data could be explained with the equilibrium Si(OH)4 ^ SiO(OH)3~ + H+ and with log *flt = —9.46 ± 0.02 (3cr). The calculation has been earried out by using the Computer program Letagropvrid. Table 2 gives a survey of the calculations.

Item Type:	Article
Uncontrolled Keywords:	coulometric titration technique
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Physical Chemistry
Depositing User:	Halka Bilinski
Date Deposited:	02 Oct 2015 09:23
URI:	http://fulir.irb.hr/id/eprint/2129
DOI:	10.3891/acta.chem.scand.21-2503

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