How to Test Chrome Plates With Copper Sulfate

Copper sulfate testing detects the presence of zinc on various metals and the presence of free iron on various steels. Using copper sulfate on chrome plates will easily indicate the presence of various elements.

Using copper sulfate on chrome plates will easily indicate whether various elements are present.
  1. Put on gloves, protective eye wear and an apron.

  2. Place 8 grams of copper sulfate into the glass container.

  3. Add 500 milliliters of distilled water to the copper sulfate and mix carefully.

  4. Add 2 milliliters of sulfuric acid to the copper sulfate and water solution. Let the components dissolve fully.

  5. Test small objects by immersing them in the copper sulfate solution; larger objects require spot testing. Use a stiff paint brush to apply the solution to a small area of the large object. Leave the object in the solution or on the test area for 6 minutes.

  6. Rinse the object with water to clean. Scrub the object with a small brush to ensure removal of the copper sulfate solution.


  • Using these substances may be potentially toxic. Use extreme caution when handling these elements and do not handle without the proper protective wear.
  • Proper ventilation is important when conducting this test. It is best to do it outside or in a place with a good exhaust fan.