Hydroxypropyl Cellulose (HPC) CAS 9004-64-2 is a nonionic cellulose ether made by reacting natural cellulose with propylene oxide after alkalization.
| ITEM | STANDARD |
| Appearance | White to yellowish-white or creamcolored granular solid or powder, hygroscopic after drying. |
| Solubility | Soluble in cold water, in ethanol(96 percent) and in propylene glycol giving colloidal solutions, practically insoluble in hot water |
| Identification A-C | Complies |
| PH (25℃) | 5.0-8.0 |
| Silica | ≤0.6% |
| Residue on ignition | ≤0.8% |
| Loss on drying | ≤5.0% |
| TG Value | 130C-150℃ |
| Pb | ≤3ppm |
| Hg | ≤0.1ppm |
| AS | ≤lppm |
| Cd | ≤1ppm |
| Hydroxypropyl | 53.4-80.5% |
| Viscosity (2% Solution,20℃) | 6.0-11.2mPa.s |
| Heavy metals | ≤10ppm |
| Particle size | 100% Pass 40 mesh |
| Total yeast& mould cousColiforms | ≤100cfu/g |
| Total aerobic Microbial Courttstl | ≤1000cfu/g |
(Hydroxypropyl cellulose, HPC) is a non-ionic water-soluble cellulose ether, which is prepared by alkalizing cellulose and reaction with propylene oxide. It has both water solubility and organic solubility, and has good film-forming, adhesion, thickening and surface activity, and is widely used in medicine, food, cosmetics and industrial fields.
