HPMC is a nonionic cellulose ether, white grayish-white powder or granule，odorless and flavorless, soluble in cold water, glacial acetic acid, ethanol, methanol and propylene glycol, slightly soluble in acetone depending on the degree of substitutions, practically insoluble in hot water, ethylene glycol and toluene.
Product name:HPMC
Currency name: Hydroxypropyl Methyl Cellulose
Synonyms: Cellulose, 2-hydroxypropyl Methyl ether
CAS Number: 9004-65-3
Specification: Pharmaceutical grade
|
Type Index |
E series |
F-series |
K-series |
|
Methoxy % |
28.0-30.0 |
27.0-30.0 |
19.0-24.0 |
|
Hydroxy propyl % |
7.0-12.0 |
4.0-7.5 |
4.0-12.0 |
|
Gelatification temperature/℃ |
58-64 |
62-68 |
70-90 |
|
Loss on drying |
≤5% | ||
|
pH |
4.0-8.0 (1%Solution,25℃) | ||
|
Residue on Ignition |
≤1.0 ％ | ||
|
Heavy metals |
≤ 20 ppm | ||
|
Lead |
≤ 10 ppm | ||
Applications:
a. Pharmaceutical aid：HPMC is used as adhesive, solutizer in tablet， film-forming reagents in pharmaceutical coating，delayed-release and controlled-release tablets or capsules, thickener and water-binding agent in liquid formulation, component in eye drop.
B. Cosmetic：HPMC is used as thickeners, adhesives, emulsifiers and film-forming reagents.
Package:25kg/drum
Period of validity:3 years