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1.What is Sodium Carboxymethyl Cellulose?

Sodium carboxymethyl cellulose abbreviated as CMC-Na, white to light yellow powder, granular or fibrous material, hygroscopic, easily soluble in water, in neutral or alkaline, the solution is high viscosity liquid. It is stable to drugs, light and heat. But to heat is to 80 ℃ as a limit, 80 ℃ above the prolonged heating, viscosity decreases, insoluble in water. [3] Its relative density 1.60, sheet relative density 1.59. refractive index 1.515. Heating to 190 ~ 205 ° C is brown, to 235 ~ 248 ° C when charring. Its solubility in water depends on the degree of substitution. Insoluble in acids and alcohols, does not precipitate when encountering salt. It is not easy to be fermented, has great emulsifying power to oil and wax, and can be stored for a long time.

2.How is Sodium Carboxymethyl Cellulose produced?

CMC-Na was prepared from cellulose by a two-step process, starting with the alkalization of cellulose. The reaction system is alkaline, accompanied by some side reactions in the presence of water, such as sodium hydroxyacetate, hydroxyacetic acid and other by-products generated, due to the presence of side reactions, will increase the consumption of alkali and etherifying agent, which in turn reduces the efficiency of etherification; to rationalize the use of alkali, to control the amount of water system, the concentration of alkali and stirring mode, in order to alkalize the full purpose of etherification to increase the etherification rate, inhibit the occurrence of side reactions. Cellulose reacts with sodium hydroxide to produce alkali cellulose, after which alkali cellulose reacts with chloroacetic acid to produce CMC-Na, and this process is called etherification reaction.

3.How is Sodium Carboxymethyl Cellulose stored and distributed?

1, moisture: because sodium carboxymethyl cellulose is soluble in water, and its raw materials itself is very good at absorbing moisture, so it should be stored in a dry and ventilated warehouse, so as not to break the bag, and must avoid moisture and rain, so as to ensure that its properties will not change, so as not to cause unnecessary losses. In order to ensure that its properties will not change, so as not to cause unnecessary losses. 2, high temperature: when the temperature of sodium carboxymethyl cellulose reaches a higher degree, the color will begin to change, under the influence of high temperature sodium carboxymethyl cellulose performance, properties will be affected to a greater or lesser extent, therefore, in the storage of the time must avoid high temperatures.

4.What is Sodium Carboxymethyl Cellulose used for?

Due to its thickening effect, sodium carboxymethyl cellulose can be used to make jam. Sodium carboxymethyl cellulose can also be used to make drinks. Corn beverage storage is easy to delamination, the formation of precipitation, and CMC and sodium alginate can improve the stability of the compound. When the addition amount of both sodium carboxymethyl cellulose and sodium alginate is 0.05%, the sedimentation rate of the corn beverage is minimum, and the delamination is not obvious after centrifugation, and the stability is good, which also lays a certain foundation for the development of the corn beverage market. Sodium carboxymethyl cellulose is also used in the production of ice cream, and the clarification of alcohol.