High Purity White Powder Hydrophobic Fumed Silica

• CAS No.: 7631-86-9
• Formula: Sio2
• EINECS: 215-684-8
• Appearance: Powder
• Usage: Rubber Auxiliary Agents, Coating Auxiliary Agents
• Color: White
• Model NO.: Fumed Silica
• Silica Content: 99.8
• pH: 3.8-4.5
• Bet: 175-225
• Loss on Drying: 1.5 Max
• Transport Package: Valve Pocket
• Specification: 10kg
• Trademark: SENOTECH
• Origin: China
• HS Code: 28112290
• Production Capacity: 5000tons/Month

Product Description

 

Product Description

Fumed silica, also known as pyrogenic silica, because it is produced in the flame. It is superfine micro-nano fine chemical products with primary particle size 5 -50 nm, which is divided into hydrophilic type and hydrophobic type according to their different surface treatment process.

Product Parameters

ISPECIFICATIONS
Specific surface area(BET)	m^2/g	200±25	GB/T 10722
pH in 4% dispersion		3.8~4.5	GB/T 1717
Loss on drying (2 hour at 105ºC)	%	≤1.5	GB/T 5211.3
Loss on ignition (2 hour at 1000° based on material dried for 2 hours at 105ºC)	%	≤2.5	GB/T 20020
Sieve residue(45μm)	%	≤0.05	GB/T 5211.14
Silica content ( Based on ignited material)	%	≥99.8	GB/T 20020
Tamped density (based on material dried for 2 hours at 105ºC)	g/L	25~60	GB/T 5211.4
Carbon Content (based on material dried for 2 hours at 105ºC)	%	<0.2	GB/T 20020

Application

Fumed silica is widely applied to the industries of silicone rubber, adhesives, sealants, paint, coating, resins, pharmaceuticals, composite materials, fertilizer, animal feed and food etc.

Packaging & Shipping

10kg/Bag, 10MT/20FCL without pallets, 16.5MT/40FCL without pallet.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

Company Profile

Hefei SENOTECH New Materials CO., LTD., is a professional supplier of Plastic and Rubber Chemicals, Mineral Filler, Petroleum Resin, Detergent Chemicals, Aramid Fiber etc. for all kinds of industry, which covers Rubber & Plastic Industry, Paint & Coating Industry, Adhesive & Sealant Industry, Detergent & Cleaning Industry  etc.

SENOTECH register in Hefei,China, and set the office in Hongkong, China. All the time, through superior goods quality and sincere professional service, we have successfully exported our goods to more than forty Countries, such as European, Japan, Vietnam, Malaysia, India and others. All our products get good comments from our clients. we select superior manufacturer who produce according to the top standards.

SENOTECH not only provides customers with high quality combination products, but also the expert knowledge as well as best service at any time. Look forward to building a strong and profitable association with the customers from the global world.

FAQ

Q: Which payment is available for your company?
A: T/T, L/C at sight for new customer, If our cooperation is long-term and stable, we can discuss for better one.

Q: How can you guarantee the goods you offer is qualified?
A: Most of the suppliers we cooperated are ISO-certified companies, some factory even is REACH-certified, and the quality is guaranteed. If necessary SGS test report is available at buyers' account.

Q: May I get sample before placing order?
A: Yes, Sample are available. 500g sample is free, but pls help to afford freight cost. We will ship the sample by FedEx, UPS, DHL etc, within 7 days after received the freight cost 

Q: When is the delivery time after payment?
A: Usually is within 30 days after received deposit or LC.

Q: Can you do OEM or custom package?
A: Yes. We can custom bags according to your request.