This solution is used to verify the silver content in items
Apply a drop of this solution to a small sample of the item to be tested
Compare the color of the sample once in the solution to the chart included with each bottle to determine silver content
Each order is for a 0.5 oz bottle
The acid will change colors based on purity. Intended for use on samples of precious metals. Ideal for coins, jewelry, antique silver collectibles, and more. Instructions included.