Complaint
Zinc oxide is an inorganic compound with the formula ZnO, which is a white powder that is insoluble in water, and it is widely used as an additive in numerous materials and products including rubbers, plastics, ceramics, glass, cement, lubricants, paints,ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes. Although it occurs naturally as the mineral zincite, most zinc oxide is produced synthetically.
Item/Parameter |
| |||
Zinc Oxide% min | ZnO feed grade | ZnO 99.5% | ZnO 99.7% | ZnO99.9% |
Metallic Zinc (in accordance with Zn) % | 0.01 | None | None | None |
Lead Oxide(Pbo)%max | 0.05 | 0.05 | 0.037 | 0.001 |
Cadmiums Oxide(Cdo)% max | ----- | ----- | ----- | 0.0005 |
Cupric Oxide(Cuo)% max | 0.0004 | 0.0004 | 0.0002 | 0.0002 |
As | ----- | ----- | ----- | 0.0005 |
Manganese(Mn)% max | 0.0258 | 0.0001 | 0.0001 | ----- |
Ferro Oxide(FeO)% max |
| ----- | 0.001 | ----- |
Muriatic Acids Insoluble Substance%max | 0.01 | 0.008 | 0.006 | 0.004 |
Loss on Ignition%max | 0.2 | 0.2 | 0.2 | ----- |
Water Insoluble substance%max | 0.2 | 0.2 | 0.1 | ----- |
Volatile105% | 0.5 | 0.4 | 0.3 | 0.3 |
Sieve Residue(45um mesh)% | 0.1 | 0.1 | 0.1 | 0.1 |
Surface Areamin | 40 | 45 | 50 | 60 |
Industry grade, medicine grade, feed grade, rubber grade, cosmetics grade, agriculture grade, food grade.
1) In industry:
A: Mainly used Rubber or cable industry as a reinforcing agent and an active agent, to give a rubber having a good corrosion resistance, tear resistance and elasticity
B: As a white gum coloring agent and a filler, in the chloroprene rubber to be used as vulcanization active agents, organic synthesis catalyst, desulfurization agents.
C: Zinc oxide is a well-known white pigment, a common name Zinc white, the advantage is that it would not turn to black when met H2S gas, because ZNS is white. And when heated, ZnO gradually become lemon yellow from white, light yellow. The usage of this feature, it mixed with paint or added to the thermometer, made of color paint or discoloration of the thermometer.
2) In ferzilizer, Fine desulfurization with the feed gas in the fertilizer industry
A: In feed processing, used as zinc nutrition fortifier(applied to poultry, livestock, fishery, fishery levels of various types of feed additives for zinc).
B: In food, used as nutritional supplements.
C: In Medicine: As ZnO has the capacity of convergence and bactericidal. In medicine, it often modulated into ointment use.
D: Used as analytical reagents, reference reagents, fluorescent agents, and the matrix of photosensitive materials.
E: In cosmetic, used as sunscreen cosmetics series products.
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