Chennai Chemical industry Based in Chennai India. Chennai chemical are a leading Chemical Manufacturer and Supplier of Aerogel or Silica aerogel In Chennai India . We are supplied into various industrial markets including Household , Institutional Cleaning, Personal Care and Industrial sectors including Oil Field, Agriculture, Lubricants, Metal Working chemical industry and Coatings markets.
Aerogel is a synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas. The result is a solid with extremely low density and extremely low thermal conductivity. Nicknames include frozen smoke, solid smoke, solid air, solid cloud, blue smoke owing to its translucent nature and the way light scatters in the material. It feels like fragile expanded polystyrene to the touch. Aerogels can be made from a variety of chemical compounds.
Aerogels are produced by extracting the liquid component of a gel through supercritical drying. This allows the liquid to be slowly dried off without causing the solid matrix in the gel to collapse from capillary action, as would happen with conventional evaporation. The first aerogels were produced from silica gels.
Silica
Silica aerogel is the most common type of aerogel, and the most extensively studied and used. It is silica-based and can be derived from silica gel or by a modified Stober process.
Metal oxide
Metal oxide aerogels are used as catalysts in various chemical reactions/transformations or as precursors for other materials.
Aerogels made with aluminium oxide are known as alumina aerogels. These aerogels are used as catalysts, especially when “doped” with a metal other than aluminium. Nickel–alumina aerogel is the most common combination.
Application
A chemical adsorber for cleaning up spills.
A catalyst or a catalyst carrier.
Silica aerogels can be used in imaging devices, optics, and light guides.
A material for filtration due to its high surface area and porosity, to be used for the removal of heavy metals.
Thickening agents in some paints and cosmetics.
As components in energy absorbers.
Metal–aerogel nanocomposites prepared by impregnating the hydrogel with solution containing ions of a transition metal and irradiating the result with gamma rays, precipitates nanoparticles of the metal. Such composites can be used as catalysts, sensors, electromagnetic shielding, and in waste disposal. A prospective use of platinum-on-carbon catalysts is in fuel cells.
In water purification, chalcogels have shown promise in absorbing the heavy metal pollutants mercury, lead, and cadmium from water.
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