How do you make pyrogenic silica?
Fumed silica is made from flame pyrolysis of silicon tetrachloride or from quartz sand vaporized in a 3000 °C electric arc.
How is Aerosil made?
Aerosil® is a colloidal form of silica that is a very light and fluffy powder. It is made by burning silicon tetrachloride in a hydrogen-oxygen furnace. This produces spherical particles; the particle size can be controlled and varying grades are available ranging in size from 4 to 25 micrometers.
Is Aerosil edible?
The general answer is “no”, fumed silica is not a dangerous material. Fumed silica is an non-toxic non-harmful material. It is not combustible nor explosive. In fact fumed silica has been applied in cosmetic, food and drugs for years.
How is cabosil made?
A registered trademark for a series of treated and untreated synthetic silicon dioxide products. Also called Fumed silica, it is a very light, fluffy white powder that is made by hydrogen-oxygen furnace combustion of silicon tetrachloride.
What is the difference between precipitated and fumed silica?
The Differences Between Precipitated and Fumed Silicas Precipitated silica is larger in particle size than fumed silica, which results in a higher specific surface area. Precipitated silicas display better hardness and abrasion resistance properties than fumed ones do. Fumes can be harmful if inhaled.
What happens if you inhale cabosil?
Inhalation: Dust may be irritating to respiratory tract. Provide appropriate exhaust ventilation at machinery and at places where dust can be generated. See also Section 8. Ingestion: Adverse health effects are not expected.
What is the chemical name of Aerosil?
Silicon dioxide
Aerosil – Names and Identifiers
| Name | Silicon dioxide |
|---|---|
| CAS | 14808-60-7 112945-52-5 60676-86-0 7631-86-9 99439-28-8 |
| EINECS | 215-683-2;238-878-4;262-373-8;231-545-4 |
| InChI | InChI=1/O2Si/c1-3-2 |
Is Aerosil toxic?
No dangerous reaction known under conditions of normal use. Chemical stability Stable under recommended storage conditions. Possibility of hazardous reactions Not to be expected.
Can you use cabosil with polyester resin?
Yes you can add cabosil to a polyester resin or even a vinylester or epoxy resin to increase viscosity.
What is fumed silica used for?
Fumed silica and MFC are used as anti-settling, thickening and anti-sagging agents, and for reinforcement of films or composites. Typical application areas for the both are paints and coatings, adhesives, printing inks, plant protection, personal care and home care products.
Is cabosil hazardous?
STABILITY AND REACTIVITY Reactivity: Not reactive. Substance is an inert inorganic solid. Stability: Stable under recommended handling and storage conditions. Possibility of hazardous reactions: None under normal processing.