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北京快三开奖结果彩票控 www.8hib.cn Aqualon? ethylcellulose (EC) is a cellulose ether distinguished by its versatility.
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Aqualon EC is soluble in a wide range of organic solvents. Typically, Aqualon EC is used as a non-swellable, insoluble component in matrix or coating systems.
Aqualon EC can be used to coat one or more active ingredients of a tablet to prevent them from reacting with other materials or with one another. It can prevent discoloration of easily oxidizable substances such as ascorbic acid, allowing granulations for easily compressed tablets and other dosage forms.
Aqualon EC can be used on its own or in combination with water-soluble components to prepare sustained release film coatings that are frequently used for the coating of micro-particles, pellets and tablets. The improved compressible grade, Aqualon T10 EC, was developed with optimized compactibility (high ethoxyl content and low viscosity) and good powder flow. The PHARM grades of Aqualon EC are compliant with the monograph requirements of the National Formulary and the European Pharmacopoeia.