Factory Spot Supply Indirect Method 99.7 Zinc Oxide Product Description The indirect zinc oxide is a metal oxide in the form of white powder with a particle size of about 0.1-10 microns. Insoluble in water, soluble in acid and strong alkali, ammonia and ammonium salt solution. Indirect Zinc Oxide is odorless, tasteless and non-gritty. It turns yellow when heated, turns white again after cooling, and sublimes when heated to 1800°C. The indirect method uses zinc ingots as raw materials. The zinc ingots are converted into zinc vapor at a high temperature of 1000 °C in a graphite crucible, and then oxidized by the blown air to form zinc oxide, and the product zinc oxide particles are collected after the cooling tube. Applications 1. Used as reinforcing agent, active agent and vulcanizing agent in natural rubber and synthetic rubber, and also used as coloring agent and filler of white glue; 2. It can make the rubber have good wear resistance, tear resistanc…