Sodium Carboxymethyl Cellulose (CMC)

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Sodium Carboxymethyl Cellulose (CMC) Manufacturer

Carboxymethyl cellulose (CMC), also called cellulose gum and sodium carboxymethyl cellulose, is a water-soluble, non-ionic cellulose derivative. It is made by chemically modifying natural cellulose (such as wood pulp or cotton fiber). The hydroxyl group in its molecular structure is replaced by carboxymethyl (-CH₂COOH), endowing it with unique physicochemical properties:

Water Solubility – Dissolves readily in cold/hot water, forming viscous solutions.
Viscosity Modifier – Acts as a thickening agent in liquids (adjustable viscosity grades).
pH Stability – Effective in pH 4–12 (varies by substitution degree).
Film-Forming – Creates flexible, transparent films in coatings/adhesives.

LANDU is a prominent CMC manufacturer in China, and we provide high-quality CMC widely applied in food, textile printing, batteries, oil drilling, and papermaking industries. Our LANDERCOLL CMC features the following functional benefits:

Moisture Retention – Prevents water loss in food, cosmetics, and cement applications.
Binding Agent – Enhances texture/structure in food, tablets, and ceramics.
Stabilizer – Prevents sedimentation in suspensions (e.g., paints, sauces).
Non-Toxic & Biodegradable – Safe for food (E466), pharmaceuticals, and eco-friendly products.

Functions and Applications of LANDERCOLL® Carboxymethyl Cellulose

Food Industry

CMC, as a stabilizer and thickener, prevents the separation of whey in yogurt, enhances the anti-melting property of ice cream, improves the texture, and increases the smoothness of the taste.
CMC functions as a water-retaining agent and modifier, delaying the aging of starch, keeping the bread soft and moist, extending its shelf life, and enhancing the structural stability of the cake at the same time
As a suspending agent and thickener, CMC ensures the uniform distribution of pulp in the juice, prevents sedimentation, and endows the sauce with an appropriate viscosity, enhancing its adhesion to the wall and taste.

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As a thickener for water-based drilling fluids, CMC can significantly increase the viscosity of the drilling fluid, enhance its ability to suspend cuttings, prevent cuttings from settling, and ensure the cleanliness of the wellbore and the stability of drilling operations.
The viscoelasticity of CMC can improve the lubricity of drilling fluid, reduce the frictional resistance between the drilling tool and the wellbore, and at the same time, reduce wellbore spalling through the protective effect of the colloid, thereby enhancing drilling efficiency and safety.

Textile Printing

CMC, as a highly efficient thickener, is used to formulate printing color pastes, providing appropriate rheological properties and viscosity to ensure clear pattern outlines and non-permeability.
Working as a stabilizing agent, CMC can enhance textile fibers’ stability and prevent deformation during weaving, which improves final fabric quality and appearance.

Paper Making

CMC is used for sizing the surface of paper, which can form a dense and smooth film layer, significantly improving the water resistance, printability, and surface strength of the paper.
Meanwhile, in the coating process, it serves as a stabilizer to optimize the leveling property of the coating and ensure a uniform and defect-free coating.

Frequently Asked Questions!

Is Medium Viscosity Enough for Fermented Protein Beverages?

For fermented protein beverages, medium and low-viscosity products have a substitution degree of about 0.90 and good acid resistance, which can usually meet the needs.

What are the Characteristics of CMC with a Higher Substitution Degree?

Products with a high substitution degree have increased fluidity and significantly reduced pseudoplasticity. For products with the same viscosity, the smoothness of high substitution degrees is more obvious; the solution with high substitution degrees is shiny, and the solution with general substitution degrees is whitish.

Is Sodium Carboxymethyl Cellulose Safe for Humans?

Sodium carboxymethyl cellulose itself is non-toxic, odorless, not easily fermented, and has good thermal stability. The FAO and WHO have approved its use in food. However, when using it, it is still necessary to follow the relevant standards and specifications.

What are the Methods for Rapid Dissolution of Carboxymethyl Cellulose?

It can be mixed with other colloids or dispersed in a 1000-1200 rpm blender. Warm water dissolves faster than cold water, but boiling is generally not recommended because long-term cooking of carboxymethyl cellulose products will destroy the molecular structure.

Sodium Carboxymethyl Cellulose (CMC)

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