Rubber Grade Silica, Supersil 140 Silica, Supersil Precipitated Silica, Silica Compounds, Mumbai, India
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PRECIPITATED SILICA

 
 
 
 
 
 
 
 
 
 Physico Chemical Characteristics of Precipitated Silica

Rubber Grade Specification

 

TECHNICAL SPECIFICATION

 

1  . PHYSICAL APPEARANCEPOWDER

:

SNOW WHITE FREE FLOWING

2  . PARTICAL SIZE

:

3 TO 6 MICRONS

3  . BET SURFACE AREA

:

140 – 170

4  . MOISTURE CONTENT AT 105`C

: 3 TO 5 % MAX.

5  . IGNITION LOSS AT 1000`C

: 10 % MAX

6  . PH OF 5 % AQUEOUS SUSPENSION

: 6.5 TO 7.5

7  . BULK DENSITY

: 0.11 TO 0.14   GM. / CC

8  . WATER ABSORPTION %

: 250 TO 300

9  . OIL ABSORPTION %

: 250 TO 270

10. RESIDUE ON 325 MESH ( WET SIEVING)

: 0.3 % MAX.

11. SILICA CONTENT , ANHYDROUS BASE

: 98 %

12. SPECIFIC GRAVITY

:

1.92

     
     
 
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