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Aluminum impurities in Nickel Sulfamate bath

Q. How to remove aluminum impurities from the Nickel Sulfamate solution?
What is a acceptable limit in ppm?

Jawed Sabir
Chemist - Cedar Grove, New Jersey
February 3, 2012

Aluminum is generally not considered a detrimental contaminant at least in a chemical way because it is so electro-negative that will not plate from an aqueous electrolyte. Physically, Al particulates may settle or become entrapped in the plate causing roughness. A simple filtration will fix this.
G. Marrufo

Guillermo Marrufo
Monterrey, NL, Mexico
February 7, 2012

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