Monitoring surfactant in electrolyte during metal treatment

Details Monitoring surfactant in electrolyte during metal treatment Monitoring surfactant in electrolyte during metal treatment

1977-10-25

1979-08-21

Chemistry: physical processes

Physical processes

Crystallization

23230A, 23230M, 422 75, 422110, 204 54R, G01N 3116, G01N 2102, C25D 330

Patent

active

041652185

ABSTRACT:
A technique for the quantitative monitoring of a nonionic surfactant, such as nonylphenolpolyglycolether, in an acid tinning bath for the production of shiny, pore-free coatings on components. A measured amount of bath fluid (a bath specimen) is diluted with distilled water and mixed with sulfuric acid, and this mixture is then immediately titrated with a tannic acid solution until opalescence occurs.

REFERENCES:
patent: 2464846 (1949-03-01), Buser
patent: 2977199 (1961-03-01), Quittner
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patent: 3422271 (1969-01-01), Fuhrmann
patent: 3462244 (1969-08-01), Leisey
patent: 3731807 (1973-05-01), Louboutin et al.
patent: 3838926 (1974-10-01), Kato et al.
patent: 3870466 (1975-03-01), Rellstab et al.

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