High purity zinc oxide rubber grade supplier and manufacturer - China factory

Product Description

High purity zinc oxide rubber grade

Product name	Zinc oxide
CAS NO	1314-13-2
EINECS NO	215-222-5
Molecular formula	ZnO

The physical properties of high purityrubber-grade zinc oxide are as follows:

High purity zinc oxide rubber grade:

White six-crystal system crystal or powder, odorless, non-toxic, and fine in quality.

Relative density: 5.606

Refractive index:2.008-2.009

Melting point: 1975.

High purity zinc oxide rubber grade is soluble in acid, sodium hydroxide, ammonium chloride, but insoluble in water, ethanol and ammonia.

High purity rubber-grade zinc oxide is an amphoteric oxide, which absorbs carbon dioxide and water in the air to produce zinc carbonate, which is yellow, turns yellow when heated, and returns to white after cooling. It does not transmit ultraviolet rays and does not turn black when exposed to hydrogen sulfide.

The high gradezinc oxide rubber grade produced by MST has high quality, strong activity, uniform particle size, and good dispersibility. It has the following advantages in the rubber industry:

High purity zinc oxide rubber grade specification:

Item	Type1	Type2	Type3
Zinc oxide（Zn0 calculating as dry material)% ≥	99.7	99.7	99.5
Metal content（as dry)% ≤	none	none	0.008
Insoluble Matter in Hci % ≤	0.006	0.008	0.03
Loss on ignition % ≤	0.2	0.2	0.25
Residue on sieve (45um)% ≤	0.1	0.15	0.2
Water soluble matter % ≤	0.1	0.1	0.15
Volatile matter in 105℃ % ≤	0.3	0.4	0.5
Lead(pb）% ≤	0.008	0.05	0.1
Copper(Cu)% ≤	0.0002	0.0004	0.0007
Manganese（ Mn）%	0.0001	0.0001	0.0003
Cadmium (Cd）%	0.002	0.005	0.01
Iron (Fe）%	0.005	0.01	—

High purity zinc oxide rubber grade has a good effect of accelerating vulcanization in the rubber industry, increasing the cross-linking density of vulcanized rubber and making vulcanization more thorough.
lHigh purity zinc oxide rubber grade can better improve the viscosity of the material, and can improve the adhesion of rubber, steel wire, cord and other framework materials.
High purity zinc oxide rubber grade has good dynamic mechanical properties, which can make rubber products have less deformation, less heat generation, good wear resistance, and good aging resistance.

The high-purity zinc oxide produced by MST currently produces 180,000 tons per year, 50% of which is used in the rubber industry.

In addition, high-purity zinc oxide is also used in feed, fertilizer, paint, glass, electronics, soft magnetic, medicine, cosmetics and other industries.

High-purity zinc oxide is a chemical product often seen in daily life.

MST has been committed to providing high-quality products to users. Customers are welcome to contact us.

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