Hydroxypropyl Methylcellulose (HPMC):
_Chemical Information:_
1. Formula: C8H16O6(C3H6O2)x(C4H8O3)y
2. Molecular weight: Variable (depending on substitution degree)
3. CAS number: 9004-65-3
4. EINECS number: 232-675-4
_Properties:_
1. White or off-white powder
2. Soluble in water, organic solvents
3. Viscosity: 5-100,000 mPa.s (depending on grade)
4. Melting point: 160-200°C (320-392°F)
_Uses:_
1. Pharmaceuticals (tablet coating, controlled release)
2. Food industry (emulsifier, stabilizer, thickener)
3. Cosmetics (hair care, skin care, toothpaste)
4. Construction (cement, drywall)
5. Paints and coatings
_Food Applications:_
1. Emulsifier in baked goods, desserts
2. Stabilizer in ice cream, yogurt
3. Thickener in sauces, dressings
4. Coating for fruits, vegetables
_Pharmaceutical Applications:_
1. Tablet coating (controlled release)
2. Film formation (transdermal patches)
3. Binder (tablets, capsules)
