Antifoaming additive for acid liquids

Details Antifoaming additive for acid liquids Antifoaming additive for acid liquids

1988-07-05

1990-01-30

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

558 45, 558170, 558174, C25D 310

Patent

active

048971669

ABSTRACT:
Acidic liquids, such as galvanic electrolyte solutions for metal electroplating, contain a surfactant and a foam inhibiting agent which is a perfluoroalkyl-containing ester of phosphoric acid.

REFERENCES:
patent: 2915554 (1959-12-01), Ahlbrecht et al.
patent: 3188340 (1965-06-01), Mackenzie et al.
patent: 3310480 (1967-03-01), Brown
patent: 3745097 (1973-07-01), Chessin et al.
patent: 3911056 (1975-10-01), Houghton et al.
patent: 4167460 (1979-09-01), Tomaszewski
patent: 4202706 (1980-05-01), Newell et al.
patent: 4293441 (1981-10-01), Newell et al.
Kosolapoff-Meier, Organic Phosphorous Compound, vol. 6, pp. 211 et seq., Verlag Wiley, New York 1973.
Kosolapoff-Meier, Organic Phosphorous Compound, vol. 6, pp. 227-228, Verlag Wiley, New York 1973.
J. Afzal et al., J. Fluorine Chem. 34, 385 (1987).

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