Product Details:
Copper Etchant
Ready to use solution designed for etching printed circuit boards and other metals.
Directions of Use
Immerse copper board in solution and agitate until etching action is completed. Etching process can be sped up by heating the solution to a temperature no higher than 55°C (135°F).
Note: Do not dilute this product with water.
Q. How do I dispose of Ferric Chloride Solution?
A. There are two ways:
1. Contact your local Hazardous Waste Disposal Company
2. The solution must not be put down the drain because of residual copper ions left in it. To make it safe for disposal, you can add sodium carbonate (washing soda) or sodium hydroxide to it to neutralize it, until the pH value goes up to between 7.0 and 8.0, testing it with indicator paper. Copper will be deposited as a sludge. Allow the sludge to settle, pour off the liquid, further dilute it with water and then it can be poured down the drain. Collect the sludge in plastic bags and dispose of it as required by your local waste authority.