SODIUM CARBOXYMETHYL CELLULOSE

Item No.: 00143
CMC widely used in drilling mud treatment agent, synthetic detergent, organic detergent aid, sizing agent for textile printing and dyeing, water-soluble colloidal tackifier for daily chemical products, tackifier and emulsifier for pharmaceutical industry.
  • TYPE:
    THICKENERS
  • CAS:
    9004-32-4
  • EINECS:
    618-378-6
  • HS CODE:
    39123100
Description Specification Applications
Description
PRODUCTS INFORMATION
Sodium carboxymethyl cellulose is widely used in drilling mud treatment agent, synthetic detergent, organic detergent aid, sizing agent for textile printing and dyeing, water-soluble colloidal tackifier for daily chemical products, tackifier and emulsifier for pharmaceutical industry, thickener for food industry, adhesive for ceramic industry, industrial paste, sizing agent for paper industry, etc. It is used as flocculant in water treatment, mainly for wastewater sludge treatment, which can improve the solid content of filter cake.
BASIC INFORMATION AND CHEMICAL PROPERTIES
Form Low viscosity
MF C6H7O2(OH)2CH2COONa
MW 0
Melting point 274 °C (dec.)
Density 1,6 g/cm3
pH (10g/l, 25℃) 6.0~8.0
Pka 4.30(at 25℃)
Specification
Appearance: White or yellowish free flowing powder, free from signs of impurities.
Purity: 99.5 % min.
Degree of Substitution: 0.65-0.85
Viscosity on dry basis
(1% Soln., 25C, Brookfield, 30rpm):
3000-4000mPa.s
PH Value: 6.5-8.0
Moisture: 8% max.
Heavy Metals (ppm): 10.0 max.
Pb (ppm): 2.0 max.
As(ppm): 2.0 max.
Hg(ppm): 1.0 max.
Cd(ppm): 1.0 max.
Total plate count: 500cfu/g max
Yeast &mould: 100cfu/g max
Coliforms: Negative
E. Coli: Negative
Applications
1. Thickening and emulsifying stabilization

Edible sodium carboxymethyl cellulose can emulsify and stabilize the beverage containing oil and protein. The general oil beverage is characterized by containing different degrees of fat and a certain amount of protein, which is easy to separate and float up during storage, forming an unsightly "collar" and affecting the appearance of the product.

In addition, proteins are easy to coagulate and separate, especially for products with low pH value, proteins are bound to coagulate, and CMC Na can effectively solve these problems. It dissolves into a transparent and stable colloid in water, which can stabilize proteins, reduce the surface tension between fat and water, and fully emulsify fat. Therefore, CMC Na is often used as a thickener in the food industry.

2. Water retention

Sodium carboxymethylcellulose has hydration. It can play a role in tissue improvement in meat products, bread, steamed bread and other foods, and can make the water not volatile, improve the product yield and taste.

3. Gelation

Thixotropic sodium carboxymethylcellulose means that macromolecular chains have a certain number of interactions and tend to form a three-dimensional structure. After the formation of three-dimensional structure, the apparent viscosity of the solution increased; After breaking the three-dimensional structure, the apparent viscosity decreased. Thixotropy is that the change of apparent viscosity depends on time. Thixotropic carboxymethyl cellulose plays an important role in the gel system, which can be used to make jelly and jam.

4. Film forming property

Sodium carboxymethyl cellulose can form a film on the surface of food, which can protect fruits and vegetables. Due to the existence of the film, a gas environment with low oxygen and high carbon dioxide is formed between the film and fruits and vegetables, which reduces the gas exchange rate and material exchange rate, and is used to prolong the shelf life of fruits and vegetables.

Sodium carboxymethyl cellulose also has some other properties, such as suspension and chemical stability, which also lay a foundation for its wide application in food industry.
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