CAS NO: 10279-57-9
EC NO: 238-878-4
Formula: SiO₂.x(H₂O)

Product description: 

I. Chemical properties
Formula: SiO₂.nH₂O, molecular weight 60, white powder or particle, melting point 1750℃, insoluble in water and common hydrofluoric acid.

II. Uses
White carbon black is favorable reinforcing agent and filler, which can be widely used in tire, conveyer belt, rubber roll, shoemaking and other industries. In addition, it can also be widely used in fire protection, pesticide, papermaking, feed, ink, paint and other fields.

III. Technical index

Index name     Executive standard
SiO₂        %    ≥98
Residue on sieve (75µm)  %    ≤0.5
Specific surface area     ㎡/g    180—220
PH (10% suspension liquid)    6.0-7.0
Loss on ignition (1000℃, 2h)  %    ≤7.0
Heat loss (105℃, 2h)  %    4.0-8.0
Oil absorption DBP  cm3/g    2.5-3.0

IV. Packing 
Laminated plastic woven bag lined with plastic film bag, net weight 10kg, 20kg, 25kg/bag, export product is according to the requirement of foreign merchant.

Alias: white carbon; White carbon black,combustion method; Pelleted Hydrated Silica; Hydrated Silica; Silicondioxidehydrate; Silica, hydrate; Precipitated silica; Silica Dioxide
Structural formula: