Sodium Carboxymethyl Cellulose (CMC-Na for short) is a multifunctional polymer chemical widely used in many industries such as food, medicine, daily chemicals, and petroleum. Its main characteristics and properties make it an indispensable additive in industry and daily life.

1. Molecular structure and chemical properties
Sodium Carboxymethyl Cellulose is a derivative obtained by chemical modification of natural plant cellulose. Its molecular structure contains carboxymethyl (-CH2COOH) groups, which can form hydrogen bonds with water molecules, thus giving it excellent solubility and moisture retention. Its chemical properties are relatively stable, and it usually has strong acid and alkali resistance, but it may degrade under high temperature and strong acid and alkali conditions.

2. Solubility and hydration
CMC has good solubility and can dissolve quickly in cold and hot water to form a high-viscosity aqueous solution. Its aqueous solution has good stability and rheological properties, and is especially suitable for food, cosmetics, coatings and other fields. It has strong dispersibility in water, can effectively absorb moisture and form a film, and has a strong ability to retain moisture, so it has a good moisturizing effect.

3. Thickening and bonding properties
As a thickener, the viscosity of CMC solution increases with the increase of concentration, and it is widely used in systems that need to control rheological properties. For example, in the food industry, CMC can be used as a thickener, emulsifier and stabilizer in products such as juice, beverages, ice cream, salad dressing, etc. In oil drilling, CMC is used in mud systems as a binder to improve the rheological properties of mud and increase the stability of drilling fluid.

4. Stability and durability
CMC has good stability, especially in neutral and weakly acidic environments, its performance changes little. It can resist the interference of various chemical substances. In some special applications, such as pharmaceuticals, cosmetics and other industries, the stability of CMC is particularly important. In addition, CMC also has the advantages of high temperature resistance and strong salt resistance, so it works better under some special conditions.

5. Non-toxic and harmless and environmentally friendly
CMC is a product obtained by modifying natural cellulose and belongs to natural polymer materials. It does not contain toxic substances and is harmless to the human body, so it is widely used in food, medicine and other industries. For example, in pharmaceutical preparations, CMC can be used as an adhesive, sustained-release agent and filler, etc., which is safe and reliable to use. In addition, CMC will not pollute the environment during use, which meets the requirements of modern environmental protection, so it is considered to be a green and environmentally friendly additive.

6. Wide range of application areas
Food industry: In the food industry, CMC is used as a thickener, stabilizer and emulsifier. It can effectively improve the texture and taste of food, extend the shelf life, and has a good control effect on the consistency, taste, appearance and other aspects of food. For example, CMC is often used in juice, jelly, ice cream, cake, salad dressing, instant soup, biscuits and other foods.

Pharmaceutical industry: CMC is widely used in oral solid preparations (such as tablets, granules) and liquid preparations (such as solutions, suspensions) as an auxiliary material for medicines. Its main functions include filling, bonding, sustained release, moisturizing, etc., which can improve the release characteristics of drugs and improve the stability of drugs.

Daily chemicals: In daily chemicals, CMC is widely used as a thickener and stabilizer in shampoo, shower gel, toothpaste, skin care products and other products. Its excellent moisturizing properties make it widely used in cosmetics and skin care products, especially for the skin.

Oil drilling: In the oil industry, CMC is mainly used in drilling fluid as a thickener and binder. It can effectively adjust the rheology of drilling fluid, ensure the stability of drilling fluid under high temperature, high pressure and other conditions, and ensure the smooth progress of drilling operations.

Paper and textile industry: CMC can be used as a coating, coating agent for paper and slurry for textiles, which can enhance the strength and surface smoothness of paper and improve the durability and softness of textiles.

7. Product specifications and quality control
CMC product specifications can be customized according to different application fields and customer needs, usually with different viscosity grades and solubility requirements. During the production process, companies will ensure the consistency and high quality of products by controlling the quality of raw materials and the stability of production processes. Common viscosity grades include low, medium and high viscosity, and users can choose the appropriate specifications according to actual needs.

Sodium carboxymethyl cellulose has become an important multifunctional material in many industries due to its excellent physical and chemical properties, such as excellent solubility, thickening, moisture retention and environmental protection. Whether in food, medicine, daily chemicals or petroleum, paper and other fields, it plays an irreplaceable role. With the continuous advancement of technology and the expansion of its application scope, the market prospects of CMC will be broader.