High Purity 99% Fumed Silica Silicon Dioxide for Powder Coating

• CAS No.: 7631-86-9
• Formula: Sio2.X(H2O)/Sio2
• EINECS: 238-878-4
• Classification: Silicon Dioxide
• Grade Standard: Industrial Grade
• Kind: Alkaline Oxide
• Model NO.: silicon dioxide
• Quality: First Class
• Purity: Min 99.5%
• Appearance: White Powder
• Bet: 175-195
• Transport Package: 25kg/Bag
• Specification: Hydrated Silica
• Trademark: HBCS
• Origin: Hebei
• HS Code: 2811229000
• Production Capacity: 5000000 Ton/Year

Product Description

High purity 99% fumed silica silicon dioxide for powder coating

Synonyms: SiO₂ Powder, White Carbon Black, Precipitated Silica, Silica,Silicon Dioxide,Reinforcing filler...

Chemical Property
It can be dissolved by NaOH, HF.Other kinds of acid, water and solvents cannot dissolve the product. Resistance to high temperature, no combustion, good insulation, odourless properties

Application

1. White Carbon Black (Silicon Dioxide, Hydrated Silica) are a versatile inorganic chemical which are used for reinforcement of rubbers and plastics, coating and paints, printing inks and cosmetics, antiblocking 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. White Carbon Black (Silicon Dioxide, Hydrated Silica) possesses a high reinforcing potential and imparts to 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.

Fumed silica powder (Fumed silica powder)
 

Productive Process:
Fumed Silica is produced with the method of gas phase . Its theory is burning the chloride under oxyhydrogen flame and high- temperature vapor phase hydrolysis, and collected finished product after refining process of condensation, separation, deacidification and screening.

Application Features:
1.Thickening and thyrotrophic effect

2.Suspension and emulsification
3.Free-flowing and anti-caking
4.Anti-slipping function
5.Extinction effect
6.Anti-adhesion effect
7.Enhancing reinforcement effect
 

Tech Data( Precipitated Silicon SiO2 )

Index	Specification
Appearance	Fine White Powder/Granular
SiO2,%	98min
Loss on drying at 105 DC,%	3.0-6.0
Loss on Ignition at 1050 DC ,%	4.0-6.0
PH value:	6.0-6.8
Bet surface area, m2/g	170-200
DBP oil absorption,ml/100g	280-300
Sieve residue on 325mesh,%	5.0max
Tapped density, g/l	200-250
Soluble Salts content,%	3.5max