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Synthetic Precipitated Silicon Dioxide EINECS No. 231 545 4 White Carbon Black

Synthetic Precipitated Silicon Dioxide EINECS No. 231 545 4 White Carbon Black

Synthetic Precipitated Silicon Dioxide EINECS No. 231 545 4 White Carbon Black

Product Details:

Place of Origin: China
Brand Name: SKYHIL
Certification: SGS/ASTM/ROHS
Model Number: HF205

Payment & Shipping Terms:

Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: 10 KGS/Bag
Delivery Time: 7-10 Work Days
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 1000 Ton Per Month
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Detailed Product Description
Material: Silicon Dioxide Standard: Industrial Use
Other Name: White Carbon Black Appearance: White And Colloidal Powder
Molecular Formula: Sio2 CAS No: 7631-86-9
EINECS No: 231-545-4 HS Code: 281122

Synthetic Amorphous Precipitated Silicon Dioxide Used For Tires

 

 

Brief Intruction for 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.

 

Here is a brief look at how precipitated silica is made:

 

Step 1: Precipitation

Sodium silicate solution (water glass) and mineral acid are reacted in an agitated vessel to produce a slurry of amorphous silica particles. The critical physical properties of precipitated silica, such as particle size and porosity, are controlled during this stage of the process by manipulating, among other things, the composition, concentration, and ratio of reactants in the precipitating solution; the speed of agitation; the reaction time; and the reaction temperature.

Step 2: Washing

The precipitated silica slurry is then concentrated to form a filter cake. The product filter cake is washed to remove the salt byproduct that is produced during precipitation.

Step 3: Drying

The silica filter cake is then dried to the desired final product moisture content.

Step 4: Finishing and packaging

The dried silica is then finished to achieve the desired final product form. This can include: agglomeration or compaction into a low-dust form, or milling and classification to the required particle size distribution. The final product is packaged for shipment in small bags, big bags, or bulk trucks or railcars.


Specifications of precipitated silica

Tires -HF Series

 

Product Series   Tire Grade
Type   HF105 HF115 HF125 HF135 HF145
Physical Form   powder mirco pearl granular
BET m2/g 110-140 140-170 125-150 155-180 190-230
Silica(dry basis) % ≥90 ≥93
Drying Loss % 4.0~8.0
Ignition Loss (dry basis) % ≤7.0
pH(10% aqueous solution)   6.0~7.5
DBP cm3/g 2.0~3.0
Sieve Residue 45um % ≤0.5
Cu mg/kg ≤30
Mn mg/kg ≤50
Fe mg/kg ≤500
Soluble Salts (As Na2SO4) % ≤1.5

 

Synthetic Precipitated Silicon Dioxide EINECS No. 231 545 4 White Carbon Black

Contact Details
Guangzhou Quanxu Technology Co.,Ltd.

Contact Person: Mr. Don

Tel: +8618211475147

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