Felcosil-175 Powder Precipitated Silica for Rubber

Precipitated silica, also called 'white carbon black', is an amorphous form of silica (silicon dioxide, SiO2); it is a white, powdery material. Precipitated silica is produced by precipitation from a solution containing silicate salts.

Item NO.:
Felcosil-175P
EINECS No:
238-878-4
CAS No.:
10279-57-9
Chemical Formula:
SiO2
Surface BET (m²/g):
155-185
Properties:
White powder form, precipitated silica is made of sodium silicate with sulfuric acide through hydrolysis. It can be dissolved by NaOH,HF. Other kinds of acid, water and solvents can not dissolve the product.

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Felcosil-175 Powder Precipitated Silica for Rubber

Product Name

SiO2, Precipitated Silica, White Carbon, Silicon Dioxide, Silica Powder, Granular Silica

Chemical Properties

White powder or granular form, precipitated silica is made of sodium silicate with sulfuric acide through hydrolysis.

It can be dissolved by NaOH,HF. Other kinds of acid, water and solvents cannot dissolve the product.

Specifications

Items	Specification
Appearance	White Powder
Loss at 105°C 2h %	4.0-8.0
Igniting Loss 1000°C 2h % Max.	7.0
DBP absorption Value cm3 /g	2.00-3.50
60Mesh sieve residue % Min	75
pH Value (5% aqueous suspension)	6.0-8.0
SiO2 % Min	97
BET specific surface area m2/g	155-185

Application

1.Felcosil-175P Conventional Silica is a versatile inorganic chemical which are used for reinforcement of rubbers and plastics, coating and paints, printing inks and cosmetics, antilocking of plastic foils, free running and free flow of sticky solid and liquid substances, carrier for pesticides, insecticides, high temperature insulation, stabilizing of beer and silicon rubber.

2.Felcosil-175P Precipitated Silica possesses a high reinforcing potential and imparts rubber compounds particularly high Shore hardness, tensile strength, tear resistance and abrasion resistance. In order to achieve optimum rubber-technical data the addition of activators like glycols, amines or other alkaline accelerators is necessary.

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