Ammonium Hydrosulphide Aging Fluid

Silver Oxidation/Aging Chemical - Ammonium Hydrosulphide;A most common silver aging fluid used by traditional silversmiths;How to make up;1 part ammonium hydrosulphide to 4 parts water (by volume);At temperature 18 to 60 celsius;Time 30 seconds to 2 minutes;Colour: for darker shades use 1 to 3 parts for medium shades are produced in 30 seconds;For best results parts should be clean when immersed in this solution;A tank with polythene, pvc or rubber lined steel is ideal;A heater is not required but an extraction is necessary