Electrolytic chromic acid bath for chrome plating

Details Electrolytic chromic acid bath for chrome plating Electrolytic chromic acid bath for chrome plating

1975-12-17

1978-06-06

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

204DIG2, C25D 310

Patent

active

040935221

ABSTRACT:
Electrolytic chromic acid bath for fissured chrome plating is based upon hexavalent chromium, which contains as a catalyst a water-soluble pyridinium type compound, e.g., a five carbon atom heterocyclic ring compound containing a nitrogen atom in the ring and a proton on this nitrogen atom to constitute a nitrogenous positive ion together with sulfate, or halide ions constituting the negative ions in the bath. The sulfate and/or halogen salts are preferably in the form of addition compound with the cations of pyridinium, 2-methyl pyridinium, 3-methyl pyridinium, 4-methyl pyridinium, 2,4-dimethyl pyridinium, 2,6-dimethyl pyridinium trimethyl pyridinium, methyl ethyl pyridinium, quinolinium, methylquinolinium or acridinium.

REFERENCES:
patent: 2750335 (1956-06-01), Brown et al.
patent: 2750337 (1956-06-01), Brown et al.
patent: 3423297 (1969-01-01), VanderHorst
patent: 3432408 (1969-03-01), Brown et al.
patent: 3654101 (1972-04-01), Aoun
patent: 3833485 (1974-09-01), Crowther et al.

Affiliated with

Also associated with

Rating

Electrolytic chromic acid bath for chrome plating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrolytic chromic acid bath for chrome plating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrolytic chromic acid bath for chrome plating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1491503