Specification of HPMC E 50
HPMC E 50 Hydroxypropyl Methyl Cellulose (HPMC) |
Physical Analysis |
Appearance | White to slightly off-white fibrous or granular powder. |
Identification A to E | Conform |
Solution appearance | Conform |
Methoxy | 28.0-30.0% |
Hydroxypropoxy | 7.0-12.0% |
Loss on drying | 5.0% Max |
Residue on ignition | 1.5% Max |
pH | 5.0-8.0 |
Apparent viscosity | 40-60cps |
Particle size | Min. 98% pass through 100 mesh |
Heavy Metals |
Heavy Metal | ≤10ppm |
Arsenic | ≤3ppm |
Lead | ≤3ppm |
Mercury | ≤1ppm |
Cadmium | ≤1ppm |
Application of HPMC E 50
KimaCell® HPMC E 50 is widely used in PVC suspension polymerization, the dispersion system directly affects the quality of the product PVC resin and its processing and products; to improve the thermal stability of the resin and control the particle size distribution (both adjust the density of PVC), the amount of HPMC accounts for 0.025%-0.03% of the PVC output. The PVC resin prepared by high-quality HPMC not only ensures that the performance meets international standards, but also has good physical properties, excellent particle characteristics and excellent melt rheological behavior.