Silver Cyanide Plating Bath Storage — Potassium Silver Cyanide Alkaline-Cyanide Tank Selection

Storing Silver Cyanide Plating Bath? Start Here

When it comes to storing silver cyanide plating baths, you're dealing with a solution that includes potassium silver cyanide, potassium cyanide, and other additives. This bath is widely used in industries like electronics, RF components, and decorative plating for its excellent conductivity and reflectivity. The bath operates at a moderate temperature and alkaline pH, making it crucial to choose the right materials for storage to prevent unwanted reactions or contamination.

Can you store it in a poly tank?

Yes, you can store silver cyanide plating baths in polyethylene tanks. Both HDPE and XLPE are suitable for active bath and makedown service. These materials resist the alkaline nature of the bath and help prevent silver deposition on the tank surfaces.

Watch out for material compatibility

It's important to avoid materials like aluminum and copper, which can react with the bath, causing severe corrosion or contamination. Stick to recommended materials like HDPE, FRP vinyl ester, and polypropylene for fittings and piping.

The safety that actually matters

• Ensure proper ventilation to control hydrogen cyanide emissions.
• Regularly inspect tanks and fittings for signs of wear or damage.
• Use appropriate personal protective equipment when handling the bath.

Common questions

What size tank is typical for storage?

Most operations use tanks ranging from 100 to 2,500 gallons, depending on the scale of the plating line.

What gaskets should I use?

EPDM is standard, but Viton is recommended for severe service applications.

Can stainless steel be used?

Limited use is possible for tank-side ladders and thermowell sheaths, but avoid prolonged exposure to prevent silver deposition.