Product properties:  white to light red crystalline powder. Melting point 69.5 ℃, boiling point 272.5 ℃. Soluble in ethanol, ether, benzene, chloroform and petroleum ether, 1 part of this product is about 200 parts of water.

Use: organic synthesis, pharmaceutical intermediates. Electroless copper plating additive, used in conjunction with potassium ferrocyanide, can effectively control the copper deposition rate and avoid the formation of cuprous oxide. This product is an analytical reagent, used for the determination of ferrous, silver, cadmium, molybdenum, as a redox indicator