Zinc Oxide (rubber grade)

Description

Physical and chemical properties: Molecular formula: ZnO Molecular Weight: *1.*8 Appearance: yellowish powder. Bulk Density: about 0.5g/ml Odor: Odorless. Solubility: Insoluble in water, alcohol; soluble in dilute acids. Specific Gravity: 5.*7 pH: No information found. Melting Point: ***5C (***7F) Active Zinc Oxide has high surface activity and energy level due to fine particles and large specific surface area. It can be used less than indirect ZnO when do compounding as an additives. Index: The harmful elements such as Pb, Cd and As are very low in our product: Items Index Zn as ZnO *****8 % Average particle diameter under electron microscope ≤ *0nm Average particle diameter tested by XRD ≤ *0nm Specific surface area ≥ *0 m2/g Pb ≤ *0ppm Mn ≤ *0ppm Cu ≤ *0ppm Cd ≤ 4ppm Volatile at **5℃ ≤ 0.7 % Soluble matter in water ≤ 0.7 % Hydrochloric acid insoluble ≤ 0.*5 % Loss on ignition ≤ 4 % Packing: In polyethylene film bag with outer polypropylene woven bag. *5kg.