Hydroxypropyl methyl cellulose hpmc
Hydroxypropyl methyl cellulose hpmc
hpmc
HS Code:3912,900
CAS:9004-65-3
Hydroxypropyl methyl cellulose hpmc is a kind of white or slightly yellowish powder, odorless, tasteless, and non-toxic. The product can be dissolved in cold water to form a transparent viscous solution. The aqueous solution of this product has surface activity so that it has emulsification, protective colloids and relative stability. PH Stability: the aqueous solution viscosity of this product is relatively stable in the range of PH 3.0—۱۱٫۰٫ As the product is non-ionic, and in the preparation process can be effectively purified by washing with hot water, it has a very low ash content. Hydroxypropyl methylcellulose hpmc products can fully meet the standards for use of medicine, food, construction and personal care products.
Specifications
| Specification | ۶۰ (E) | ۶۵ (F) | ۷۵ (K) |
| Gelling temperature (℃) | ۵۸-۶۴ | ۶۲-۶۸ | ۷۰-۹۰ |
| Methoxy (WT%) | ۲۸٫۰-۳۰٫۰ | ۲۷٫۰-۳۰٫۰ | ۱۹٫۰-۲۴٫۰ |
| Hydroxypropoxy (WT%) | ۷٫۵-۱۲٫۰ | ۴٫۰-۷٫۵ | ۴٫۰-۱۲٫۰ |
| Viscosity(cps) | ۳; ۵; ۶; ۱۵; ۵۰; ۴۰۰; ۴۰۰۰; ۱۰۰۰۰; ۲۰۰۰۰; ۳۰۰۰۰;۴۰۰۰۰; ۵۰۰۰۰; ۱۰۰,۰۰۰ ۱۵۰,۰۰۰;۲۰۰,۰۰۰ | ||
Physical and chemical properties
*Particle size:98.5% passes through 100 mesh; 100% passes through 80 mesh.
*Charring temperature: 280-300℃.
*Bulk density: 0.25-0.70 g/cm3 (Usually around 0.5 g/cm3 )
*Real specific gravity:1.26-1.31.
*Browning temperature: 190-200℃.
Surface tension:(2% water solution) 42-56dyn.cm.
*Properties: Dissolved in water and some organic solvent such as ethanol. propyl alcohol. ethylene chloride, the water solution is of surface activity. It is a nonionic surface active agent. Gelation temperature is different for different grades. For example, among 60RT Hydroxypropyl Methylcellulose hpmc, 60 is gelation temperature, Namely, 2% water solution will form gelation at 60%.
