Violet tungsten oxide (WO2.72) chemical property refers to special characteristics shown by chemical reaction, such as its oxidation property during the process of producing tungsten powder, it is reduced and tungsten valance decreases.
Chemical property is characteristics shown during chemical reaction, such as chemical common gender of the material category: acidity, alkalinity, oxidability, reductivity, thermal stability. Chemical property or chemical change is fixed property of all materials. Chemical property and chemical change are two different concepts. Property is the nature of substance, the internal cause of the change, property determines change, and change is the specific forms of property. Only in chemical change can embody chemical property.