Gold Member Since 2014
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Qingzhou Zhongyuan Chemical Industry Co., Ltd.

Microsilica, Silica Fume, Micro Silica manufacturer / supplier in China, offering High Purity Silica Fume Sio2, for Concrete/Refractory, for Ordinary Portland Cement, SHMP Sodium Hexametaphosphate, 68%, 65%, 60%, Factory Price, Water Softening Agent in Solution for Printing, Dyeing, and Boiler, STPP, Sodium Tripolyphosphate 90% 94%, Food Grade, Industrial Grade, Main Auxiliaries for Synthetic Detergent, Synergist for Soap; Water Softener, and so on.

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Supplier Homepage Product Construction Materials High Purity Silica Fume Sio2, for Concrete/Refractory, for Ordinary Portland Cement

High Purity Silica Fume Sio2, for Concrete/Refractory, for Ordinary Portland Cement

FOB Price: US $160 / Ton
Min. Order: 5 Tons
Min. Order FOB Price
5 Tons US $160/ Ton
Get Latest Price
Production Capacity: 3000tons/ Month
Transport Package: Plastic Bag N. W. 25/50/1000kg
Payment Terms: L/C, T/T, Money Gram, Western Union

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Basic Info
  • Model NO.: 85%~98%
  • Appearance: Grey or White Powder
  • Specification: SGS ISO
  • HS Code: 3804
  • CAS No.: 69012-64-2
  • Trademark: LY
  • Origin: Shandong
Product Description
Our advantage:
1. Factory price,
2. Good Quality,
3. Free sample,
4. ISO Cerficate,
5. A long stable supplier,
6. Good support to you
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Silica fume
Fumed silica is made by the hydrolyzed chlorosilane with high temperature in hydrogen and oxygen blaze. It is a kind of inorganic fine chemical products which is white, nonpoisonous, odourless and amorphous. HS972, HS974, and HS976 are hydrophobic fumed silica.
Hydrophobic fumed silica is produced by the chemical reaction of hydrophilic fumed silica and active silane (DMCS or HMDS). It presents hydrophobic property because its surface is replaced by the unhydrolyzed methyl groups. It is white powder with high purity and cannot be dispersed in water.
It is the combination of the chemical treament agent and the original hydrophilic oxide with chemical bond. Besides the advantages of hydrophilic products, hydrophobic fumed silica has low moisture absorption, great dispersion and rheological adjustment ability towards the polar system. Some products will be helpful to the R&D of new products by structural modifications based on a water repellent treatment. They can also improve the product performance in this way, e. G. In the liquid system, hydrophobic fumed silica can reach large addition amount with little effect on system.


Application
Rheology for the process.
Thickening for polar liquid, e. G. Epoxy resin.
Reinforcement for organosilicon elastomer.
Large volume of addition, e. G. Molded products.
Excellent Hydrophobicity to enhance anti-corrosion property.
Improvement of dielectric property, e. G. Cable compounds.
Flow agent for powder, e. G. Fire extinguishing agent.
Promotion of scratch resistance in coating and plastics

PROPERTIES
 

State
 

Non-amorphous Ultrafine

(non-crystalline) powder
 

Color
 

Grey to medium grey powder
 

Bulk density-Densified
 

500-800KG/M3
 

Bulk density-Undensified
 

200-350KG/M3
 

SPECIFICATIONS
 

SiO2(Silicon Dioxide)
 

Min.85%
 

H2O
 

Max.1.0%
 

Loss on ignition
 

Max.4%
 

Fe2O3
 

Max.0.9%
 

Al2O3
 

Max 0.7%
 

CaO
 

Max.0.7%
 

MgO
 

Max.0.5%
 

K2O
 

Max 1.2%
 

Retained on 45micron sieve
 

Max.2%
 

Pozzolanic Activity Index
 

105@7d
 

Packaging Detail:
 

900kg/jumbo bags and 300-500kg/jumbo bags, and 2 5kg small plastic woven bags,or according to customer's requirements.
 
Delivery Detail:
 
Within 10 -15 days after order confirmation
 
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