Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1991-12-11
1993-05-11
Niebling, John
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204405, 2041531, G01N 2726
Patent
active
052098320
ABSTRACT:
The invention relates to a process for the preparation of a metal complex dye under production conditions, which comprises reacting at least one dye with a metal donor, adding said metal donor or said dye discontinuously before the end point of the metallizing is reached, and determining the end of the metallizing voltametrically.
The process makes it possible to prepare metal complex dyes in good yield and purity.
REFERENCES:
Z. Anal. Chem. 260, pp. 261-267.
Z. Anal. Chem. 186, pp. 187-193.
Z. Anal. Chem. 238, pp. 321-414.
"Polarography and voltammetry of dyes and intermediates", Trends in Analytical Chemistry 5:4 pp. 97-102 (1986) P. M. Berger et al.
Chem. Abstract 86 (2) 6375y.
Chem. Abstract 105 (14) 116519s.
Chem. Abstract 112 (4) 29964j.
Z. Anal. Chem. 269, pp. 344-349.
Z. Anal. Chem. 245, pp. 58-61.
Chimia 28, No. 2, pp. 56-59.
Beck Gerhard
Schmidt Wilhelm
Bell Bruce F.
Ciba-Geigy Corporation
Mathias Marla J.
McC. Roberts Edward
Niebling John
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