... Certification). 1.Purity:92%,white powder/granular2.usage:tyre rubber 3.CAS:1853-98-54.ISO9001,COA XD-001Apperance ... 7.0UsageMain in Radial tire,also used in soles,rubber tube,rubber tape,Solid tire,Cycle tire,and Colored tires Apperance ... sieve less than 0.03UsageMain used in High Transparent rubber products\ soles. Also can used in Medicine,food, ... less than 0.03Usage Mainly used for silicone rubber