natrosol™ 250 l pharm hydroxyethylcellulose
chemistry: cellulosics
chemical name: hydroxyethylcellulose
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Hydroxyethylcellulose (HEC) is a non-ionic, water-soluble polymer widely used in pharmaceutical formulations.
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features and benefits - provides adequate film adhesion and smoothness with crystal clear appearance
- any desired thickening efficiency can be achieved with the wide variety of grades available
- compatible in solutions with many inorganic salts as well as with a broad range of other materials such as surfactants, solubilizers, and preservatives
- stable over a broad pH range with the viscosity of the solutions being largely unaffected
- gels in solution to control rheology
- easily dispersed in cold or hot water
- •the perfect viscosity to provide higher lubricity and bioadhesion to increase corneal permanence
applications - viscosifier
- film former
- rheology modifier
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