CMC is usually composed of natural cellulose and treatments and a chlorine acetic acid reaction after system of a kind of anionic type macromolecular, molecular weight 6, 400 (+ 1 000).
Main byproduct is glycolic acid sodium chloride and.
CMCS are natural cellulose modification.
At present the UN food and agriculture organization (FAO) and the world health organization (WHO) has been officially called it "modified cellulose".