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hydroxyethyl cellulose cas number

Understanding Hydroxyethyl Cellulose Properties, Applications, and CAS Number

Hydroxyethyl cellulose (HEC) is a non-ionic water-soluble polymer derived from cellulose, a naturally occurring biopolymer. It is characterized by the substitution of hydroxyethyl groups on the cellulose backbone, which enhances its solubility in water and modifies its physical properties. The chemical formula for hydroxyethyl cellulose can be represented as (C2H4O)n, where 'n' indicates the degree of polymerization. The specific CAS (Chemical Abstracts Service) number assigned to hydroxyethyl cellulose is 9004-62-0, which helps in its identification and categorization in chemical databases.

Properties of Hydroxyethyl Cellulose

HEC is renowned for its exceptional water-retention capacity, thickening ability, and film-forming properties. Its high viscosity makes it an excellent thickening agent in various formulations, while its ability to create a gel-like texture contributes to its widespread use in cosmetics, food, and pharmaceutical products. HEC is stable over a wide pH range (3 to 11) and is resistant to microbial degradation, making it a suitable choice for both indoor and outdoor applications.

The solubility of hydroxyethyl cellulose is influenced by the temperature and concentration of the solution. When dissolved in water, it can form a transparent, viscous gel, making it an ideal component in gel formulations. Due to its high water-binding capacity, HEC is extensively used in formulations that require moisture retention, which is vital in cosmetics and personal care products.

Applications of Hydroxyethyl Cellulose

1. Cosmetics and Personal Care Products HEC is a popular ingredient in lotions, creams, shampoos, and conditioners due to its emollient properties and ability to improve texture and spreadability. Its film-forming ability helps to create a protective barrier on the skin, enhancing moisture retention and overall hydration.

hydroxyethyl cellulose cas number

2. Pharmaceuticals Hydroxyethyl cellulose serves as a binder, thickener, and stabilizer in various pharmaceutical formulations. It is commonly used in gels and ointments due to its ability to maintain consistency and enhance the stability of active ingredients. Its non-toxic nature and compatibility with various drugs make it suitable for oral and topical dosage forms.

3. Food Industry HEC is utilized as a food additive for its thickening and emulsifying properties. It acts as a stabilizer in sauces, dressings, and dairy products, ensuring uniformity and enhancing texture. Moreover, its ability to retain moisture makes it useful in baked goods, improving shelf life and consumer appeal.

4. Building and Construction In the construction industry, HEC is used as a thickening agent in cement and plaster products. It improves the workability of these materials and enhances their performance, including water retention and adhesion properties.

5. Agriculture Hydroxyethyl cellulose finds application as a soil conditioner and surfactant in agricultural products. Its water retention capabilities can help improve soil structure, enhancing plant growth and crop yield.

Conclusion

Hydroxyethyl cellulose stands out as a versatile polymer with a diverse range of applications spanning multiple industries. Its unique properties, including water solubility, thickening ability, and film-forming characteristics, make it an indispensable ingredient in cosmetics, pharmaceuticals, food, construction, and agriculture. The CAS number 9004-62-0 provides a means of identifying and cataloging this valuable compound, facilitating its use in various formulations and products. As research continues in the field of polymers and biopolymers, HEC may find even broader applications, contributing to innovation and sustainability in industrial practices.

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