What is the particle size of fumed silica?
around 20-40 nanometers
Fumed silica is produced at a smaller particle size (around 20-40 nanometers), which makes it very reactive and gives it more surface area for chemical reactions.
What is Aerosil made of?
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.
What is Aerosil used for?
Aerosil 200 is a hydrophilic fumed silica used to alter properties of paints, coatings, unsaturated polyester resins, laminating resins, gel coats, HTV- and RTV-2K- silicone rubber, adhesives, sealants, printing inks, cable compounds, cable gels, and plant protection.
Is Aerosil 200 hydrophobic?
AEROSIL® 200 Key points at a glance: Hydrophilic surface with a medium-high surface area. It is one of the most widely used grades of fumed silica.
Is Aerosil safe?
No dangerous reaction known under conditions of normal use. Stable under recommended storage conditions.
What is the chemical name of Aerosil?
| Brand Name | Chemical Name/Formula | Average Particle Size |
|---|---|---|
| Aerosil 200 | Amorphous colloidal silicon dioxide (silica) SiO2 | 12 nm (primary particles) |
| Sylysia 320 | 3.2 µm | |
| Sylysia 350 | 3.9 µm | |
| Sylysia 550 | 3.9 µm |
What is the meaning of Aerosil?
Definition of aerosol 1 : a suspension of fine solid or liquid particles in gas Smoke, fog, and mist are aerosols. airborne aerosol transmission of infective viral particles also aerosols plural : the fine particles of an aerosol stratospheric aerosols.
Why is Aerosil added to tablet?
in tablet formulations. For example, Wai et al (1966), Lerk & Bolhius (1977) and Ragnarsson et al(l979) have shown that the presence of Aerosil in a tablet formula- tion reduces their disintegration and dissolution times while its lubricant property in powder mixtures has been reported by York (1975).
Is Aerosil a lubricant?
AEROSIL® Fumed Silica – Lubricating Grease Applications Non-technical overview flyer illustrating which grades of AEROSIL® are most suited to grease formulation, differentiated by application field and base oil.
What is Aerosil powder?
Fumed silica serves as a universal thickening agent and an anticaking agent (free-flow agent) in powders. Like silica gel, it serves as a desiccant. It is used in cosmetics for its light-diffusing properties. It is used as a light abrasive, in products like toothpaste.
Can you eat Aerosil?
* Do not eat, smoke, or drink where Silica, Amorphous (Fume) may be present since the chemical can be swallowed.
