Qingdao Tianya Chemical Co Ltd

Key specifications of Carboxymethyl Cellulose
Sodium Carboxymethyl Cellulose, we usually call it’s abbreviation CMC. It has many synonyms as follows: Carboxymethyl Cellulose, Carboxy Methyl Cellulose, Sodium salt of Caboxy Methyl Cellulose, Sodium CMC, Na-CMC, Cellulose Sodium, Carboxymethyl. Sodium Carboxymethyl Cellulose is a kind of cellulose which has the widest application range and the biggestconsumption in the modern world. CMC is honored the name as “Monosodium Glutamate of Industry”. CMC is widely used in food, detergent, oil drilling, mining flotation, toothpaste, paper making, painting, ceramic, tobacco, textile, pharmaceutical and other industries in the world.

The main specifications for judging the quality of Sodium Carboxymethyl Cellulose are Degree of Substitution (D.S) and purity. Generally speaking different Degree of Substitution makes different nature of CMC. Degree of Substitution is increased, solubility will be enhanced, transparency and stability of solution will be better. The transparency of Sodium Carboxymethyl Cellulose is better with the Degree of Substitution of 0.7-1.2. The viscosity of aqueous solution is the biggest with PH value of 6-9. To guarantee the quality, besides using etherification agent, some factors influencing Degree of Substitution and purity should be considered, such as the use level relations between alkali and etherification agent, etherification time, moisture content, temperature, PH value, solution concentration, salt, and etc..