Verified Company
Zhengzhou Macro Imp. & Exp. Co., Ltd.
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Factory directly Ceramic grade Zinc Oxide
Properties: white powder; odorless; bitter taste; absorbs carbon dioxide from the air; has greatest ultraviolet absorption of all commercial pigments sp.gr.5.606; m.p. 1975°C; soluble in acids and alkalis; insobuble in water and alcohol. Noncombustible; nontoxic as powder.
Utilizing:Accelerator activator, pigment, and reinforcing agent in rubber; oinment; pigment and mold growthe inhibitor in paints; ceramics; floor tile; glass; zinc salts (zinc stearate etc.) feed additive; semiconductor in electronic devices; electronic ceramics, raw material to produce zinc phosphate as steel coating
1.It has strong activity, uniform particle size and strong dispersion. It plays a good rule in the promotion of vulcanization. It can increase the crosslink density of vulcanized rubber and vulcanizes more completely.
2. It can better improve the rubber viscosity and improve the adhesion between rubber and skeleton materials such as steel wires and curtain fabric.
3. Rubber has good Dynamic performance, small deformation, less heat production, nice wearability and good resistance to aging
zinc oxide is used in radial tires, bias tires, conveyor belts, rubber hoses, rubber belts, rubber shoes, latex gloves and other rubber products manufacturing. Our products’ performance is in full compliance with the requirements of the state, ministry of chemical industry and U.S. ASTM standards.
Specificaton:
item | index | ||||||
Ltems of analysis | 99.9 | 99.8 | 99.7 | 99.5 | 99 | 98 | 96 |
ZnO %≥ | 99.9 | 99.8 | 99.7 | 99.5 | 99 | 98 | 96 |
Metal zinc (Zn) %≤ | none | none | none | none | 0.01 | none | none |
Lead oxide (Pb) %≤ | 0.003 | 0.005 | 0.037 | 0.04 | 0.15 | 0.18 | 0.3 |
Cupric oxide (Cu) %≤ | 0.0001 | 0.0001 | 0.0002 | 0.0004 | 0.0004 | / | / |
Manganic oxide (Mn) %≤ | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | / | / |
Matter insoluble in HCl %≤ | 0.004 | 0.006 | 0.012 | 0.015 | 0.05 | 0.1 | 0.25 |
Loss on ignition %≤ | 0.12 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.5 |
Matter soluble in water %≤ | 0.01 | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 |
105 °c volatile %≤ | 0.06 | 0.1 | 0.3 | 0.4 | 0.4 | 0.6 | 0.8 |
Specific surface area(m2/g) %≥ | 60 | 55 | 50 | 45 | 40 | 40 | 40 |
Size (um) | 20-40 | 2-20 | 4-20 | 4-50 | / | / |
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