Натриевата карбоксиметил целулоза (CMC) е карбоксиметилирана производна на целулозата, известна още като целулозна дъвка и е основната йонна целулозна дъвка .
CMC обикновено е анионно полимерно съединение, получено чрез реагиране на естествена целулоза с каустична сода и монохлороцетна киселина, а молекулното тегло на съединението варира от хиляди до милиони .
CMC is a modified natural cellulose. Currently, the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) have officially called it "modified cellulose". The synthesis method of sodium carboxymethyl cellulose was invented by German E. Jansen in 1918, and was patented in 1921 and was Въведен в света . оттогава той е произведен в Европа .
CMC was only a crude product at that time, used as a colloid and binder. From 1936 to 1941, the industrial application research of sodium carboxymethyl cellulose was quite active, and several quite inspiring patents were published. During the Second World War, Germany used CMC in synthetic detergents as an anti-redeposition agent and as a substitute for certain natural gums (such като желатин и дъвка арабски), които значително развиват CMC индустрията .
Hercules Company в Съединените щати започва индустриално производство на CMC през 1943 г. и произвежда рафинирани натриеви карбоксиметил целулозни продукти в 1946. Продуктът е признат като безопасна хранителна добавка .
CMC has many special properties, such as thickening, bonding, film formation, water retention, emulsification, suspension, etc., and it is non-toxic, odorless, not easy to ferment, and has good thermal stability. It is widely used in petroleum, geology, daily chemicals, food, medicine and other industries and is known as "industrial Msg ".
