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White Powder Aerosil Hydrophobic Fumed Silica CAS 7631-86-9

White Powder Aerosil Hydrophobic Fumed Silica CAS 7631-86-9

Name:White powder Aerosil Hydrophobic Fumed Silica CAS 7631-86-9
Molecular Formula: O2Si
Molecular Weight: 60.08
EINECS: 231-545-4
Purity: 97% Min.

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Product Introduction
Products Description

 

CAS 7631-86-9 corresponds to Aerosil Hydrophobic Fumed Silica, commonly known as Silicon dioxide or Silicon (IV) Oxide. This amorphous or crystalline inorganic compound features a molecular formula of SiO₂, molecular weight of 60.08 g/mol, and exhibits insolubility in water and most organic solvents while capable of forming stable colloidal dispersions. Aerosil Hydrophobic Fumed Silica occurs naturally in minerals like quartz and silica sand and can also be synthesized chemically.

 

CAS 7631-86-9 | Aerosil Hydrophobic Fumed Silica
CAS 7631-86-9 | Silicon(IV) Oxide

 

Basic Info

 

Name White powder Aerosil Hydrophobic Fumed Silica CAS 7631-86-9
CAS Number 7631-86-9
Formula SiO₂ (O₂Si)
Molecular Weight 60.08 g/mol
InChI InChI=1S/O₂Si/c1-3-2
Density 2.2 g/cm³ (amorphous form)
Melting Point 1610°C (crystalline)
Boiling Point 2230°C (sublimes)
Solubility Insoluble in water
Storage Store at room temperature
Appearance Colorless, odorless solid

 

Uses

 

Rubber & Plastics: Serves as a reinforcing agent to enhance mechanical strength in silicone rubber, cable materials, and other polymeric products.

Coatings & Inks: Improves rheological properties, prevents sagging, and boosts pigment dispersion and corrosion resistance.

Adhesives & Sealants: Functions as a thickener and reinforcing agent, extending storage stability.

Energy Storage: Acts as an electrolyte stabilizer in lithium-ion and colloidal batteries.

Cosmetics: Used as a thickener and thixotropic agent in creams, sunscreens, and other personal care formulations.

 

Safety Information

 

Non-toxic, but dust inhalation may irritate the respiratory tract, and protection is required during operation.

Store in a dry and ventilated place, avoid contact with strong alkali and hydrofluoric acid.

 

CAS 7631-86-9 | Silicon dioxide

 

Company Profile

 

Gnee Chem is an enterprise specialising in the research, development, production and sales of phytochemicals and fine chemicals.Our factory was established in 2016 and is located in Henan Province, covering an area of 3,600 square metres. We have a professional, well-equipped and high-quality R&D team with more than 10 years of R&D experience. Our products are widely exported to many countries, such as the United States, Russia, Canada, Australia, Europe, etc., and we provide customers with fast shipping services. We hope to establish long-term and mutually beneficial cooperation with more friends in the future, and provide the best products and services for our customers.

Contact Us
Tel: +86-372-5055135

Mob: +86-13673325456

Email: sales@gneebio.com

Factory Supply CAS 7631-86-9 | Aerosil Hydrophobic Fumed Silica
High Quality CAS 7631-86-9 | Aerosil Hydrophobic Fumed Silica
Silicon(IV) Oxide
Silicon dioxide
FAQ

 

Can your company accept customisation and meet customers' special specifications?
Yes, we can.

 

What are your payment terms?
Wire transfer, paypal, western union, money order and bitcoin.

 

What is your delivery time?
We usually ship within 1-3 days after receiving your payment.

 

 

 

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