Unique Traders

Rabindra Sarani, Kolkata, West Bengal

One of three classes of cellulose, Alpha Cellulose Powder has the highest degree of polymerization and is the most stable. The other two classes, known ashemicelluloses, are beta cellulose and gamma cellulose. Alpha cellulose powder is the major component of wood and paper pulp. It may be separated from the other components by soaking the pulp in a solution of sodium hydroxide. The pure white, alpha cellulose is insoluble and can be filtered from the solution and washed prior to use in the production of paper or cellulosic polymers. A high percent of alpha cellulose in paper provides a stable, permanent material. Linen and cotton contain high proportions of Alpha Cellulose Powder. Alpha cellulose pulps can be created from wood pulps and Cotton Linters using extended sulfite.

PAC (Polyanionic Cellulose) is a kind of nonionic cellulose ether with the properties of high purity, high DS, particularly high viscosity or low viscosity. These products are semi-natural polymer additive, thickening agent, filtrate reducer. Polyanionic Cellulose (PAC) is non – hygroscopic and considered to be stable product and is packaged in a sealed manner. The product has no specific requirement for storage, and there is no expiration date. However, it may absorb moisture if exposed to the atmosphere with a relative humidity higher than 65%.

PAC (Polyanionic Cellulose) is a kind of nonionic cellulose ether with the properties of high purity, high DS, particularly high viscosity or low viscosity. These products are semi-natural polymer additive, thickening agent, filtrate reducer.

Micro Crystalline Cellulose is a mechanically disintegrated level of Alpha Cellulose. It comprises purified, de-polymerized, Micro Crystalline sub-micron size colloidal particles. It is produced by treating Alfa Cellulose obtained as a pulp from fibrous plants with minerals acid. As the name implies, Micro Crystalline Cellulose is basically Cellulose and is derived from high quality wood pulp and Cotton Linters. While cellulose is the most abundant organic material, Micro Crystalline Cellulose can only be derived by Hydrolysis from a special grade of Alpha Cellulose.

Cellulose is an organic compound with the formula (C6H10O5)n, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. Some species of bacteria secrete it to form biofilms. Cellulose is the most abundant organic polymer on Earth. The cellulose content of cotton fiber is 90 – 95% and that of wood is 40 – 50%.