Electroforming Chemicals
Activated Carbon Powder, Electroforming Bath Purification
Also known as: Activated Carbon, Activated Charcoal, Carbon Treatment Powder
Overview
Activated Carbon Powder, Product Overview
Activated Carbon Powder is used in Nickel Sulphamate electroforming baths for organic contamination treatment, one of the most common causes of pitting, deposit roughness, and reduced bath performance. Periodic carbon treatment removes organic impurities introduced through anode bag breakdown, machining oils, or dragout contamination. Shriji Chemicals® supplies H.P. grade Activated Carbon Powder as part of our complete bath chemicals range.
Our High Purity (H.P.) grade Activated Carbon Powder is a fine black powder with a very high internal surface area that adsorbs organic contaminants such as oils and the breakdown products of wetting agents and other additives. Treatment is best done in a separate tank, followed by thorough filtration so that no carbon particles return to the plating tank.
Applications
Where Activated Carbon is Used
Organic Contamination Treatment
Removes organic impurities that cause pitting and roughness in nickel deposits.
Bath Make-Up
Used during initial bath preparation to ensure organic-free starting chemistry.
Periodic Bath Maintenance
Routine carbon treatment every few months to maintain deposit quality.
Additive Breakdown Removal
Removes breakdown products of wetting agents and other organic additives that build up over time.
Quick Facts
FAQ
Common Questions about Activated Carbon
How do I perform a carbon treatment?
Add Activated Carbon Powder to the bath, commonly 2 to 5 g/L, agitate for several hours at operating temperature, then filter thoroughly through a fine filter. Dummy plate at low current density before returning to production.
How do I know if my bath needs carbon treatment?
Signs include pitting, roughness, reduced brightness, or a change in deposit ductility without changes in bath chemistry. Periodic treatment every 3 to 6 months is recommended regardless of visible symptoms, as a preventive measure to maintain bath quality.
Does carbon treatment affect Nickel Sulphamate concentration?
Carbon treatment does not significantly affect metal salt concentrations, though some solution is lost with the carbon during filtration. Analyse and adjust after treatment.
Will carbon treatment remove my wetting agent?
Yes. Activated carbon also adsorbs wetting agents and other organic additives, so replenish them after treatment, based on bath analysis or a Hull cell test.
Related Products
Also Available from Shriji Chemicals®
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