Sodium carboxymethyl cellulose, referred to as CMC, is a white or creamy white fibrous powder or granule with a density of 0.5-0.7g/cm3, odorless and hygroscopic. So what are the common problems when using carboxymethyl cellulose?

1. What is the difference between low viscosity, medium viscosity, and high viscosity and structure? Will the consistency be different?

The length of the molecular chain is different, or the molecular weight is extra. It is divided into low, medium, and high viscosity. Of course, the macroscopic properties correspond to different viscosities. When the concentration is the same, the viscosity is different, the stability of the product and the acid ratio is different, which mainly depends on the solution of the product.

2. What is the specific performance of the product with a substitution degree higher than 1.15 or higher, and has the particular performance of the product been enhanced?

This product has a high degree of substitution, and increasing its fluidity will greatly reduce its pseudo-plasticity. A product with the same viscosity has a higher degree of substitution and a more pronounced slipperiness; a high degree of substitution has a bright solution, while a product with an average degree of substitution has a white solution.

3. Is it enough to choose a medium viscosity for fermented protein drinks?

Medium and low viscosity products, the degree of substitution is about 0.90, and the product has good acid resistance.

4. How does carboxymethyl cellulose dissolve quickly? Why does it slowly dissolve after boiling?

Mix it with other colloids, or disperse it in a 1000-1200 rpm mixer. Carboxymethyl cellulose has poor dispersibility, good hydrophilicity, and is easy to clump. The high degree of product substitution is even more obvious. Warm water dissolves faster than cold water, so the boiling is generally not recommended. Carboxymethyl cellulose products will destroy the molecular structure after prolonged cooking, and the product will lose its viscosity.

Contraindications of carboxymethyl cellulose

In the process of configuring sodium carboxymethyl cellulose, the usual practice is relatively simple, but there are some contraindications, let us take a look.

After the sodium carboxymethyl cellulose is formulated into an aqueous solution, it is best to store it in ceramic, glass, plastic, wood, and other containers. Metal containers, especially iron, aluminum, and copper containers, are not suitable for storage. If the aqueous solution of sodium carboxymethyl cellulose is in contact with the metal container for a long time, it will cause deterioration and decrease viscosity. When the aqueous solution of sodium carboxymethyl cellulose coexists with lead, iron, tin, silver, aluminum, copper, and certain metal substances, a deposition reaction will occur, reducing the actual quantity and quality of sodium carboxymethyl cellulose in the solution.

If it is not for production requirements, please try not to mix calcium, magnesium, salt, and other substances in the sodium carboxymethyl cellulose aqueous solution. Because the sodium carboxymethyl cellulose solution coexists with calcium, magnesium, salt, and other substances, the viscosity of the sodium carboxymethyl cellulose solution will decrease.

The sodium carboxymethyl cellulose aqueous solution provided should be used up as soon as possible. Suppose the sodium carboxymethyl cellulose aqueous solution is stored for a long time. In that case, it will affect the adhesion function and stability of the sodium carboxymethyl cellulose and be damaged by microorganisms and pests, which in turn affect the cleaning quality of the material.