Usually there are a lot of users asked the difference between carboxymethyl cellulose and sodium carboxymethyl cellulose, and often confuse them, some businesses it is interpreted in favor of their own understanding, I take this opportunity to briefly explain to this allows everyone to learn more about this product and distinction.
First, we will know the product abbreviation is CMC, which is the abbreviation of carboxymethyl cellulose, cellulose derivatives species from natural products, such as food slurry and natural rubber have many advantages not available. Soluble in water, can significantly increase the viscosity of the solution, with thickening, dispersing, emulsifying action, suspension, stability and protective colloid.
CMC is the main chemical reaction of alkali cellulose alkalization reaction (the reaction of cellulose with alkali) and the reaction of alkali cellulose with monochloroacetic acid etherification occurred.
Alkaline reaction equation: [C6H7O2 (OH) 3] n + nNaOH → [C6H7O2 (OH) 2ONa] n + nH2O
Etherification reaction equation: [C6H7O2 (OH) 2ONa] n + nClCH2COONa → [C6H7O2 (OH) 2OCH2COONa] n + nNaCl
By knowing the two equations, we have concluded that sodium carboxymethyl cellulose is not introduced on the basis of sodium carboxymethyl cellulose, based on the fact that in the process is generated in the alkaline (sodium) base fiber element, and then the introduction of carboxymethyl groups is synthesized.
So carboxymethyl cellulose is how it is obtained by the reaction of sodium carboxymethyl cellulose washed with ethanol and sodium wash, and in order to improve the purity, the increase of solid cost. According to the different needs of different industries, to determine the purity of the product is needed is more critical, which will directly affect the cost.