4. Characters: light blue fine powder. Melting point 155-157 ° C. Very soluble in water, very difficult to dissolve in ethanol.
5. It is used as nutritional supplements. It has good water solubility and is easily absorbed by the body. As a nutrient enhancer for copper, it can promote the absorption and utilization of iron. Widely used in beverages, salt, infant formula, health products, medicine and other fields.