Crystals in Nickel Tank
Question: We just pumped out our nickel tank for it’s six-month cleaning and have found a couple of inches of crystalline material in the bottom of the tank.
Question:
We just pumped out our nickel tank for it’s six-month cleaning and have found a couple of inches of crystalline material in the bottom of the tank. We use a Watt’s nickel bath that is continuously filtered. What is this? L. F.
Answer:
The crystalline material is most likely boric acid. Boric acid has a concentration of approximately four oz/gal in cold baths and tends to drop out of solution fairly readily. I assume that the temperature of the bath is allows to drop over the weekend or when not in use. When you bring the plating bath back up to operating temperature the boric acid is slow to redissolve. To verify this send a sample of the crystalline material out for analysis.
Additional Information: Click Here
Related Content
-
How to Maximize Nickel Plating Performance
The advantages of boric acid-free nickel plating include allowing manufacturers who utilize nickel plating to keep up the ever-changing regulatory policies and support sustainability efforts.
-
How to Choose Between Sulfate and Chloride-Based Trivalent Chromium
There are several factors to consider when choosing between sulfate and chloride-based baths for trivalent chromium plating. Mark Schario of Columbia Chemical discusses the differences and what platers should keep in mind when evaluating options.
-
Innovation in Plating on Plastic
Plating on advanced plastics solution offers improved adhesion, temperature resistance and cost savings.
