Appearance Light yellow or grey powder Initial Melting Point 290℃min Moisture 0.50%max Ash Content 0.50%max Fineness 99.9%min (1600mesh/cm2 sieve) Usage It is an important pollution-free and age-resistant which widely used in rubber industry, it is effective to extenuate that fade in vulcanization.. Package Packed in cartons lined with polyethylene bags inside. Net Weight: 10kg/carton Storage In a dry place to protect form moisture and exposure in light Statement The data listed a