Sodium Carboxymethylcellulose, otherwise known as CMC-Na, Sodium Cellulose
Glycolate, is generally called CMC.
Given approval by the Agency of Industrial Science and Technology (of
was the first to be put on sale in 1950, and we are now in a position
to be named as "a pioneer in the Japanese CMC industry".
is the anionic polyelectrolyte which is obtained along with the partial
etherification of hydroxyl groups on cellulose by using carboxymethyl
groups during the course of the reactions of cellulose with caustic soda
and then monochloroacetate respectively.
has a wide range of application to food, drugs and medicines, cosmetics,
feed mixtures, textiles, construction materials, papermaking, ceramics,
civil engineering, drilling, etc., and hence it has been being used as
thickners, dispersion stabilizers, adhesives, protective colloids, and
is mainly applied for food as a food additive based on "the Specification
and Standards for food, food additives."
has been offering high utility value by virtue of its properties as described
1. Easily soluble in both cold and hot water, thereby becoming a viscous
2. The viscosity of the viscous fluid slightly varies with temperature,
and the variation per day also is hardly exhibited.
3. Having emulsion-dispersibility and suspensibility.
4. Forming a tough and transparent film with adhesiveness.
5. Stable toward chemical actions compared with natural size, and not
6. Bland and innocuous, and physiologically harmless.
7. Insoluble in organic solvents, oil, and grease.
8. Compatible with natural gum and other water-soluble size.
The chemical structure formula of
is shown in the following figure.