HYDROXYPROPYL METHYLCELLULOSE (HPMC)

CAS:9004-65-3

Hydroxypropyl Methylcellulose (HPMC) is an important cellulose ether compound

HYDROXYPROPYL METHYLCELLULOSE

HPMC is a non-ionic cellulose ether with multifunctional applications

Appearance: White to off-white powder/granules
Smell: No special smell.
Melting point: no clear melting point, decomposition temperature of about 200℃.
Density: 1.26-1.33 g/cm³ (depending on degree of polymerization and substitution).
Solubility: easily soluble in cold water, forming a transparent viscous solution, insoluble in hot water and most organic solvents.
It is prepared by treating cellulose with sodium hydroxide to form alkali cellulose, and then etherifying it with propylene oxide and chloromethane.
Stable to acid and base, non-toxic, but excessive oral can induce diarrhea

Pharmaceuticals:
- Controlled-release matrix (10-30% w/w)
- Ophthalmic lubricants
Food Technology:
- Gluten-free bakery binder
- Sauce viscosity modifier
Construction Materials:
- Cement hydration retardant (0.2-0.5%)
Coating Systems:
- Ceramic glaze suspending agent
Textile Processing:
- Printing paste thickener
Personal Care:
- Shampoo viscosity booster (1-3%)
Specialty Applications:
- 3D printing bio-ink component
- Lithium battery separator coating