Title:
IMPROVED ACIDIC ELECTROOTIN PLATING BATH
Document Type and Number:
Japanese Patent JPS5348942
Kind Code:
A
Abstract:
An improved acid halogen electrotinning bath composition for depositing a smooth, coherent layer of tin onto a steel substrate contains about 0.10 to 4.0 grams per liter of solution of at least one oxidation inhibiting agent comprising an organic ring compound which has a radical group such as -NH2 or -NO2 in the ortho or para position, for example para-aminoacetanilide and para-nitroacetanilide. Organic ring compounds, para-aminophenylacetic acid and 4-aminoantipyrine may also be added to the bath together with sodium ferrocyanide to inhibit the oxidation of the bivalent tin ions.
Inventors:
RICHIYAADO ENU SUTAINBITSUKAA
SUCHIYUWAATO II ROOCHI JIYUNIA
SUCHIYUWAATO II ROOCHI JIYUNIA
Application Number:
JP12338077A
Publication Date:
May 02, 1978
Filing Date:
October 14, 1977
Export Citation:
Assignee:
BETHLEHEM STEEL CORP
International Classes:
C25D3/32; (IPC1-7): C25D3/32