Nitrocellulose supplier in kolkata West Bangal - East India Chemicals
Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, and flash string) is a highly flammable compound formed by nitrating cellulose through exposure to nitric acid or another powerful nitrating agent. When used as a propellant or low-order explosive, it was originally known as guncotton.
Partially nitrated cellulose has found uses as a plastic film and in inks and wood coatings. In 1862, the first man-made plastic, nitrocellulose (branded Parkesine), was created by Alexander Parkes from cellulose treated with nitric acid and a solvent. In 1868, American inventor John Wesley Hyatt developed a plastic material he named Celluloid, improving on Parkes' invention by plasticizing the nitrocellulose with camphor so it could be processed into finished form and used as a photographic film. Celluloid was used by Kodak, and other suppliers, from the late 1880s as a film base in photography, X-ray films, and motion-picture films, and was known as nitrate film. After numerous fires caused by unstable nitrate films, "safety film" (cellulose acetate film) started to be used from the 1930s in the case of X-ray stock and from 1948 for motion-picture film.
Other uses
A nitrocellulose slide, nitrocellulose membrane, or nitrocellulose paper is a sticky membrane used for immobilizing nucleic acids in southern blots and northern blots. It is also used for immobilization of proteins in western blots and atomic force microscopy for its nonspecific affinity for amino acids. Nitrocellulose is widely used as support in diagnostic tests where antigen-antibody binding occurs, e.g., pregnancy tests, U-albumin tests and CRP. Glycine and chloride ions make protein transfer more efficient.
In 1846, nitrated cellulose was found to be soluble in ether and alcohol. The solution was named collodion and was soon used as a dressing for wounds. It is still in use today in topical skin applications, such as liquid skin and in the application of salicylic acid, the active ingredient in Compound W wart remover.
Adolph Noé developed a method of peeling coal balls using nitrocellulose.
In 1851, Frederick Scott Archer invented the wet collodion process as a replacement for albumen in early photographic emulsions, binding light-sensitive silver halides to a glass plate.
Magicians' flash papers are sheets of paper or cloth made from nitrocellulose, which burn almost instantly with a bright flash, leaving no ash.
As a medium for cryptographic one-time pads, they make the disposal of the pad complete, secure, and efficient.
Radon tests for alpha track etches use it.
For space flight, nitrocellulose was used by Copenhagen Suborbitals on several missions as a means of jettisoning components of the rocket/space capsule and deploying recovery systems. However, after several missions and flights, it proved not to have the desired explosive properties in a near vacuum environment.
Nitrocellulose lacquer was used as a finish on guitars and saxophones for most of the 20th century and is still used on some current applications. Manufactured by (among others) DuPont, the paint was also used on automobiles sharing the same color codes as many guitars including Fender and Gibson brands, although it fell out of favor for a number of reasons: pollution, and the way the lacquer yellows and cracks over time.
Nitrocellulose lacquer was also used as an aircraft dope, painted onto fabric-covered aircraft to tighten and provide protection to the material, but has been largely superseded by alternative cellulosics and other materials.
It is used to coat playing cards and to hold staples together in office staplers.
Nail polish is made from nitrocellulose lacquer as it is inexpensive, dries quickly, and is not damaging to skin.
Nitrocellulose lacquer is spin-coated onto aluminum or glass discs, then a groove is cut with a lathe, to make one-off phonograph records, used as masters for pressing or for play in dance clubs. They are referred to as acetate discs.
Depending on the manufacturing process, nitrocellulose is esterified to varying degrees. Table tennis balls, guitar picks, and some photographic films have fairly low esterification levels and burn comparatively slowly with some charred residue.