Application and Contraindication of Sodium Carboxymethyl Cellulose

The Sodium Carboxymethyl Cellulose is directly mixed with water and prepared into a paste gum. When making CMC glue, first use the mixing device to add a certain amount of clear water to the mixing tank, turn on the stirring equipment, and under the condition of stirring the clear water, apply it slowly and evenly to the stirring equipment, keep stirring to fully mix CMC and water until it can be fully dissolved. The determination of the mixing time is based on the fact that when CMC is uniformly dispersed in water and there are no significant large agglomerates, the mixing can be stopped and CMC and water can be kept still.

After the Sodium Carboxymethyl Cellulose is made into an aqueous solution, it is best to store it in ceramic, glass, plastic, wood and other containers. Do not use metal containers, especially iron, aluminum, and copper containers. Because if it is in contact with the aqueous solution of the metal container for a long time, it will cause the viscosity to change and there is the possibility of reducing the viscosity. When an aqueous solution of CMC coexists with lead, iron, tin, silver, aluminum, copper and certain metal materials, the deposition reaction will occur, and the amount and quality of CMC in the solution will decrease. If it is not necessary for production, try not to mix calcium, magnesium, salt and other substances in the CMC aqueous solution. The coexistence of the CMC aqueous solution and calcium, magnesium, salt and other substances will reduce the viscosity of the solution.

Sodium Carboxymethyl Cellulose solution should be consumed quickly. If it is stored for a long time, it will affect its function and stability , and will also be damaged by microorganisms and pests, and then affect the cleanliness of the material.



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