Ashland Natrosol 250HX PHARM is a fine-particle high-molecular-weight pharmaceutical excipient in the hydroxyethyl cellulose series, tailored for scenarios such as pharmaceutical solid preparations, cosmetics, personal care and food. As an off-white or beige odorless fine granular powder and non-ionic water-soluble polymer, it has excellent binding, controlled-release, thickening and stabilizing effects
Fine-Particle & Rapid Dissolution - Fine granular form, easily soluble in cold and hot water, rapid hydration, reducing agglomeration and improving processing efficiency
Binding & Controlled-Release Adaptability - High molecular weight brings strong binding and controlled-release properties, suitable for tablet wet granulation and matrix sustained-release preparations
Salt & Surfactant Tolerance - Good compatibility with ions and surfactants, suitable for complex formulation systems with stable performance
Pharmaceutical Solid Preparations - Used as tablet wet granulation binder and hydrophilic gel matrix material, improving preparation stability and release controllability.
Cosmetic Thickening & Stabilization - Used in essences, creams and lotions, thickening and stabilizing foam, improving skin feel and long-term stability of products.
Food Additives - Used as thickener and stabilizer, suitable for beverages, sauces, baked foods, etc., improving taste and stability.
Oral Care Products - Used in toothpaste and mouthwash, thickening and bonding, improving user experience and product stability.
| Chemical Name | Hydroxyethyl Cellulose (HEC) |
| CAS No. | 9004-62-0 |
| Appearance | Off-white or beige fine granular powder |
| Odor | Odorless |
| Molecular Weight | Approx. 1,000,000 |
| Viscosity (1% aqueous solution, 25°C) | 1500-2500 mPa·s |
| Viscosity (2% aqueous solution, 25°C) | 5000-7000 mPa·s |
| Substitution Degree (Hydroxyethoxy) | 2.0-2.5 |
| pH Value (2% aqueous solution) | 6.0-8.5 |
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