1) it acts as a thickener, binder, stabilizer, suspending agent and flow controlling agent. 2) It forms fine films that are resistant to oils, greases, and organic solvents. 3) It dissolves rapidly in cold water. 4) Acts as a protective colloid reducing water losses. 5) It is suitable for use in food systems. 6) It is physiologically inert. 7) It is an anionic polyelectrolyte.