CELLOPHAX

                   It is also a regenerated form of cellulose which is a transparent film commonly used in or day to day life. It is obtained from viscose solution.In the manufacturing process the viscose solution is extruded into a thin fil and pass through a bath of sulphuric acid,ammonium sulphate &sodium sulphate. Owing this proess, the xanthate groups are eliminated and the cellulose is precipitated subsequently,the film stream through another bath containing glycerol will be absorbed by the film, in turn serves as a good plasticizer.

Cellulose Nitrate

          Nitrocellulose is obtained by the nitration of cellulose. Depending upon the degree of nitration, cellulose nitrate has different application. It is used as an explosive (gun cotton), used in photographic films. It can also used to make moulded decorative articles, fountain pens, frames of spectacles, etc.

Cellulose Acetate

          Another important cellulose plastic is cellulose acetate. It is produced b y the action of acetic anhydride on cellulose in the presence of sulphuric acid or perchloric acid catalyst.

Cell-OH + (CH₃CO)₂O gives  Cell—O—COCH₃ + CH₃COOH

          Product obtained by the complete acetylation is called primarycellulose acetate or cellulose triacetate. This cellulose acetate plastic is sed for the manufacture of  plastic. Partial saponification of primary cellulose acetate leads to the formation of a secondary cellulose acetate which is a impotant plastic used for the manufacture of nonflammable safety cine