Hydroxypropyl Methyl Cellulose (HPMC)

HPMC, white or similar to white granular powder; Odorless. Soluble in water and some organic solvents. There are industrial grade and pharm grade, and widely used in various industries and daily life.
CAS No: 9004-65-3

Physical and Chemical Properties:
1 Appearance: White or similar to white granular powder; Odorless.
2 Particle size: -100 mesh>98.5%; -80 mesh>100%.
3 Carbonization temperature: 280-300° C.
4 Apparent density: 0.25-0.70/cm³ (usually about 0.5/cm³ ), specific density 1.26-1.31.
5 Discolor temperature: 190-200° C.
6 Surface tension: 2% water solution is 42-56dyn/cm.
7 Solubility: Soluble in water and some organic solvents, as appropriate proportion ethanol/water, propanol/water, trichloroethane etc. Solution is surfactant, transparent, and stable performance. Different specifications have different gelation temperature. HPMC dissolved in water are not affected by pH value.
8 HPMC with methoxyl content decreased, the gel point increased, water solubility decreased, surface activity also decreased.
9 No heat, and was not involved in the metabolism of the human body.

Main use:
There are two grade in this product, industrial grade and pharm grade. Industrial grade main used in building industry, like adhesives, retarder, adhesives, water preserving agent, film-forming agent, also used in ceramic industry as adhesives. Pharm grade HPMC is widely used as multi-purpose pharmaceutical excipients, can be used as thickener dispersant, emulsifier and film-forming agent etc. It's also used in petroleum drilling and daily-used chemicals.
Packing:
In 25kgs cardboard drum lined with PE or in woven bag with PP lining; Stored indoors in dry and draughty palce; Avoid rain and sunlight during transporting.