Solute monitoring process

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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23230A, 106 123, 106 126, 106 127, 4274431, 427437, 427438, C23C 302

Patent

active

043245897

ABSTRACT:
This invention relates to monitoring the concentration of a component dissolved in solution where the component imparts a perceptible color to the solution and varies in concentration with use of the solution.

REFERENCES:
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patent: 3650957 (1972-03-01), Shipley et al.
patent: 3728137 (1973-04-01), Shipley et al.
patent: 3951602 (1976-04-01), Thompson
patent: 4002786 (1977-01-01), Hirohata et al.
patent: 4096301 (1978-06-01), Slominski et al.
Kirk-Othmer, Encyclopedia of Chem. Tech., Sec. Ed., vol. 5, pp. 791 & 792.
Rhael, E., Color and Instrumentation, Sandoz Inc., New York, pp. 1-55.
Shipley, Cuposit 7012 Copper Color Indicator System, 3/74.
Shipley, Analysis of Copper Baths Using Shipley Comparator, 9/74.
Shipley, Analysis of Electroless Nickel Baths Using Shipley Comparator, 4/76.
Shipley, Shipley Comparators, 5/76.

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