Rubber Grade Precipitated Silica

Precipitated silica, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.

  • Item NO.:

    Rubber Grade
  • EINECS No:

    238-878-4
  • CAS No.:

    10279-57-9
  • Chemical Formula:

    SiO2
  • Properties:

    White powder form, precipitated silica is made of sodium silica with sulfuric acide through hydrolysis. It can be dissolved by NaOH, HF. Other kinds of acid, water and solvents cannot dissolve the product.

Rubber Grade Precipitated Silica

 

Chemical Properties

Precipitated silica, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide. The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.

 

Specifications

Precipitated Silica Powder
Type 120 140 165 185 195
Heating loss(105° 2h), % 4.0-8.0
Lgniting loss(1000° 2h), % ≤7.0
DBP Absorption,cm³/g 2.00-3.50
Sieve residue,% 45um≤0.5
pH(5% suspension) 6.0-8.0
SiO2 % Min,% ≥97.0
BET specific surface area,m²/g 120±15 140±15 160±15 180±15 190±15
Salt as NA2SO4,% ≤2.0
Pellet hardness -

 

Precipitated Silica White Micro Pearl
Type 175MP 185MP 195MP
Heating loss(105° 2h), % 4.0-8.0
Lgniting loss(1000° 2h), % ≤7.0
DBP Absorption,cm³/g 2.00-3.50 2.00-2.80 2.00-3.5
Sieve residue,% 100Mesh≥80.0
pH(5% suspension) 6.0-8.0
SiO2 % Min,% ≥97.0
BET specific surface area,m²/g 170±15 180±15 190±15
Salt as NA2SO4,% ≤2.0
Pellet hardness -

 

Precipitated Silica White Granular
Type 175GR 185GR 195GR
Heating loss(105° 2h), % 4.0-8.0
Lgniting loss(1000° 2h), % ≤7.0
DBP Absorption,cm³/g 2.00-2.80
Sieve residue,% 60Mesh≥75
pH(5% suspension) 6.0-8.0
SiO2 % Min,% ≥97.0
BET specific surface area,m²/g 170±15 180±15 190±15
Salt as NA2SO4,% ≤2.0
Pellet hardness ≤70

 

Application

Silica Precipitated Silica is used in tires, shoe materials, rubber, silicone rubber, silica matting agent and ultra-fine used in coatings, paint inks, precipitated silica does not contain heavy metals and is used in feed and food additives, etc.

SiO2, Precipitated Silica, White Carbon, Silicon Dioxide, Silica Powder, Amorphous Precipitated Silica, Arosil silica

Rubber Grade Precipitated Silica

 

  1. Package: Packaging can be customized.
  2. Storage: Kept in a low temperature, dry and ventilated place, avoid direct sunlight.
  3. Shelf life: One year in ventilating, cool and dry area.
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