... all orange yellow, sorrel crystalline powder CAS NO.1314-62-1 Density: 3.357g/cm3(solid) Melting point:690 °C (963 ... of aerospace, chemistry, battery, pigment, glass, optics and pharmacology etc.1.Vanadium pentoxide ( industrial grade) BrandPurity (min)Chemical contents (%, max)V2O5SiFePSAsNa2O ...