RESULTS OF ANALYSIS ZINC OXIDE (WHITE SEAL GRADE)

  
Requirements of Zinc Oxide for Rubber Industry as per IS:3399-1973
Results Obtained
Description
The material shall be in the form of a White Dry Powder.
The submitted material is in the form of  White Dry Powder.
Sieve residue, percent by mass, Max:
a) Through 45 micron IS sieve 
= 350 Mesh BS sieve 
0.15
0.15
b) Through 75 micron IS sieve 
= 200 Mesh BS sieve 
0.05
0.05
Relative density at 270 / 270C
5.50-5.65
5.50
Acidity (as H2SO4)
percent by mass, Max.
0.02
0.015
Moisture content
percent by mass, Max.
0.50
0.14
Matter soluble in water
percent by mass, Max.
0.2
0.08
Matter insoluble in Hydrochloric Acid, percent by mass, Max.
0.15
0.002
Loss on ignition
percent by mass, Max.
0.5
0.13
Manganese (as Mn)
percent by mass, Max.
0.003
Nil
Copper (as Cu)
percent by mass, Max.
0.001
Nil
Iron (as Fe)percent by mass, Max.
To satisfy the requirement of the test
Passes the test
Lead (as Pb)
percent by mass, Max.
0.10
Nil
Matter insoluble in 14 percent acetic acid,percent by mass, Max.
0.10
0.08
Zinc Oxide (as Zno)
percent by mass, Min.
99.00
99.77
Metallic Zinc
To satisfy the requirement of the test
Nil

Remarks: From the above results, the sample conforms to IS-3399-1973 for Zinc Oxide Rubber Industry.

(SPEC-103)

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