What is Ethyl Cellulose CAS 9004-57-3

Ethyl Cellulose is a cellulose derivative with a CAS number of 9004-57-3. It is referred to as “EC”. It also has other names such as cellulose ethyl ether and cellulose ethyl ether. By subjecting cellulose to specific chemical modifications, it has a unique chemical structure and properties.

Ethyl cellulose CAS 9004-57-3 generally appears as white granules or fine powder, and is an odorless white or light gray flowing powder. In terms of physical and chemical properties, it has many characteristics. Its density is 1.45g/mL at 20℃, its relative vapor density (compared with air, air = 1) is between 1.07 – 1.18g/mL, and its refractive index is 1.47. Its melting point is in the range of 240 – 255℃, and its vapor pressure is 0.0±2.0 mmHg at 25℃. In terms of solubility, ethyl cellulose can be dissolved in most organic solvents, such as ethyl acetate, butyl acetate, benzene, toluene, xylene, acetone, methanol, ethanol, butanol, 1,2-dichloroethane, carbon tetrachloride, etc., and can be mixed with resins, oil waxes and plasticizers. It has no effect on alkali and dilute acid, but it is insoluble in water.

Uses of ethyl cellulose

Pharmazeutischen Bereich

Ethyl cellulose CAS 9004-57-3 plays a vital role in the pharmaceutical field and is a commonly used pharmaceutical excipient. It can be used as a coating agent to put a layer of “protective clothing” on the drug. For example, after wrapping some drugs that are sensitive to gastric acid with a film made of ethyl cellulose, it can pass through the stomach smoothly and reach the intestine for release, avoiding the drug from being destroyed by gastric acid in the stomach, and improving the effectiveness and stability of the drug. At the same time, it can also act as a flavoring agent to improve the taste of the drug and make it easier for patients to accept. In tablet production, ethyl cellulose can also be used as a filler to give the tablet a suitable shape and volume, which is convenient for production and processing and patient administration.

Industriellen Bereich

In the coating industry, it is often used as a thickener, adhesive, and film-forming agent. It can be used in the preparation of various coatings such as metal, paper, and rubber. It can make the coating have better adhesion, rheology, and other characteristics, making the coating more uniform, firm, and beautiful.

In electronic paste, it can be used as an organic carrier to prepare electronic paste, providing key material support for the production of electronic components.

In the field of adhesives, it can play a bonding role, allowing different materials to be better bonded together. It is also a member of the advanced insulating materials in the radio industry, used for cable insulation, PCB coating, integrated circuit packaging, etc., to ensure the safe and stable operation of electronic equipment.

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