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Grade StandardIPFormPowderPackaging Size25KgPurityGreater than 99%Packaging TypeBagGradePHARMA & CHEMICAL GRADE BOTH AVAILABLEManufacturerTAIWANCarboxymethyl Cellulose (CMC) is a versatile and widely used cellulose derivative that finds extensive application across various industries. Known for its unique properties, CMC is derived from natural cellulose and chemically modified to enhance its solubility and functionality. This comprehensive product description aims to provide an in-depth understanding of sodium carboxymethyl cellulose, including its properties, manufacturing process, and diverse applications.
1. Properties of Carboxymethyl Cellulose:
1.1. Physical Properties: carboxymethyl cellulose is a white to off-white, odorless powder with a fibrous appearance. It has a high molecular weight and is hygroscopic in nature, readily absorbing water to form viscous solutions or gels. The solubility of CMC varies depending on the degree of substitution (DS) and the molecular weight.
1.2. Chemical Properties: CMC is a sodium salt of carboxymethyl ether of cellulose. It contains carboxymethyl groups (-CH2-COOH) attached to the hydroxyl groups of cellulose. The degree of substitution determines the number of carboxymethyl groups present, affecting the solubility, viscosity, and other properties of CMC. It is highly stable under normal conditions and is resistant to microbial degradation.
2. Manufacturing Process of Carboxymethyl Cellulose: The production of CMC involves several steps, starting with the extraction of cellulose from natural sources such as wood pulp, cotton, or agricultural waste. The extracted cellulose is then subjected to alkalization, followed by etherification using sodium monochloroacetate. The reaction produces sodium carboxymethyl cellulose, which is subsequently purified, dried, and milled to obtain the final product.
3. Applications of Carboxymethyl Cellulose: 3.1. Food Industry: CMC is widely used in the food industry as a stabilizer, thickener, binder, and emulsifier. It imparts viscosity and enhances texture in a variety of food products, including baked goods, dairy products, beverages, and sauces. Moreover, CMC's ability to form gels and films makes it suitable for applications such as edible coatings and encapsulation of flavors and additives.
3.2. Pharmaceutical Industry: In the pharmaceutical industry, CMC serves as a critical excipient in various formulations. It is utilized as a binder in tablet manufacturing, a thickening agent in liquid dosage forms, and a stabilizer in suspensions. CMC also finds application in controlled drug release systems, providing sustained release of active pharmaceutical ingredients.
3.3. Personal Care and Cosmetics: CMC is employed in personal care and cosmetic products due to its excellent thickening, stabilizing, and moisturizing properties. It is commonly found in creams, lotions, shampoos, toothpaste, and gels. CMC acts as a rheology modifier, enhancing product consistency and ensuring proper dispersion of active ingredients.
3.4. Detergents and Cleaning Products: carboxymethyl cellulose finds use in the manufacturing of detergents and cleaning products. Its ability to act as a thickener and stabilizer improves the viscosity and stability of liquid detergents, dishwashing liquids, and surface cleaners. CMC also contributes to the formation of uniform and stable foam in various cleaning formulations.
3.5. Paper and Textile Industry: In the paper industry, CMC acts as a surface sizing agent, improving the printability, water resistance, and strength of paper products. It also serves as a coating binder, enhancing the adhesion of pig
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