Product Name: Granular & powdery zinc oxide for rubber(indirect method)
Characteristics:

Compares with the similar product, the product has the following characteristics:
I. Powdery zinc oxide:
1. Small particle size, even granularity, strong dispersible ability, can speed up the curing speed, enhance the curing rubber's thermal conductivity.
2. High content, few impurity: Can well improve the sizing material's viscosity, enhance the rubber product's stability, strengthen framework material's cohesive force.
3. Strong activity: Has well reinforcing property, enhances the rubber product's wear resistance, elasticity, elongation ratio and the peel strength.
4. Good mechanics performance: enhance rubber product's aging resistance, abrasion resistance, lengthen the rubber product's service life.
II. Granular zinc oxide:
Has great dispersibility, the granular zinc oxide can increase its fluidity, reduce dust, convenient for mechanization charging, improve operational environment and enhance the production. We can supply granular zinc oxide of all different grades.

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Granular & powdery zinc oxide for rubber(indirect method)
GB/T3185-92

Item

Index

Top grade product

First-grade product

Qualified product

Zinc oxide(dry product),% ≥

99.7

99.5

99.4

Metallized product(Zn),%≤

No

No

0.008

Lead oxide(Pb),%≤

0.037

0.05

0.14

Manganese's oxide(Mn),%≤

0.0001

0.0001

0.0003

Copper oxide(Cu),% ≤

0.0002

0.0004

0.0007

Hydrochloric acid insolubles ,%≤

0.006

0.008

0.05

Loss on ignition,%≤

0.2

0.2

0.2

Residue on sieve(45um),%≤

0.10

0.15

0.20

Water extract,%≤

0.10

0.10

0.15

105℃ volatile matter,%≤

0.3

0.4

0.5

Oil absorption,g/100g≤

……

……

……

Color(compare with the standard sample)

……

……

……

Reducing power(compare with the standard sample), %≥

……

……

……

Physical Chemical Data

Relative density[43.3]

5.47……5.67

fnp[43.3]

1720℃

Boiling point(sublime)

1800℃

Refractive index

2.0041

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Packing: 25kg woven bag inner lining plastic or 25kg kraft paper bag, 20kg kraft paper bag, 500kg/800kg bag for packing, or according to customer requirement.
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