We are offering rashayan active zinc oxide (razox) is produced from reaction of zinc ash with alkali using wet (precipitation) process. Due to precipitation method, the product has a very high surface area (about 30-50 m2gram) and finer particle size. razox is a compound containing zinc oxide, zinc bi-carbonate, zinc hydroxide and zinc carbonate. Chemical formula of rashayan active zinc oxide is zno.zn(hco3)2.zn(oh)2.znco3 in rubber industries, razox serves as an activator and accelerator during vulcanization. As activator, it provides free radical electron to sulfur molecule. As accelerator, it makes sulfur molecule change from unsaturated bonding to saturated bonding molecule, which improves rubber tensile strength.