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Electrodeposition of Lead from Alkaline Lead Gluconate Bath
- Source :
- Journal of the Metal Finishing Society of Japan. 15:216-221
- Publication Year :
- 1964
- Publisher :
- The Surface Finishing Society of Japan, 1964.
-
Abstract
- Electrodeposition of lead is performed to deposit an acid-resistant coating for containers directly onto steel or cast iron. It is commonly done in fluoborate, fluosilicate and sulfamate baths.In this study, the alkaline lead gluconate was used as a new electrolyte in lead depositing bath.The following results were obtained.(1) The most suitable composition of electrolyte for the best results were as follows:2PbCo3·Pb(OH)2 200g/l, (C6H11O7)Na 100g/l, NaOH 100g/l, glue 0.2g/l, red-oil 1 drop/l(2) The cathode current efficiency was 99% up under current density of 5A/dm2 and at bath temperature of 70°C.(3) It was shown by Hull cell method that alkaline lead gluconate bath gave higher throwing power, as compared with fluoborate or fluosilicate bath; the power was more increased when its temperature rise to 70°C or a small amount of additives such as glue and red-oil was added.
Details
- ISSN :
- 18843395 and 00260614
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Journal of the Metal Finishing Society of Japan
- Accession number :
- edsair.doi...........3a15a4e03f0185a0449088b0955ee175
- Full Text :
- https://doi.org/10.4139/sfj1950.15.216