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HPMC (hydroxypropyl Methyl Cellulose)
HPMC (hydroxypropyl methyl cellulose) is a type of cellulose ether that is commonly used in a variety of industries. It is derived from cellulose, a natural polymer that is found in plant cell walls. HPMC is made by chemically modifying cellulose with both methyl and hydroxypropyl groups. The resulting product is a white, odorless, and tasteless powder that is highly soluble in water.
HPMC is a versatile material with many uses across various industries, and its popularity continues to grow due to its unique properties and versatility.
HPMC is a versatile material with many uses across various industries, and its popularity continues to grow due to its unique properties and versatility.
| Packing | 25KG each, custom packing available |
| Delivery | Around 7 Days |
| Payment Terms | T/T or L/C at sight |
Catagories
Product Description
This product is non-ionic cellulose ether, the appearance of a white powder, odorless tasteless, soluble in water and most polar organic solvent, in cold water swelling into clear or slightly turbid colloidal solution. The Solution has surface activity,high transparency and stable performance. HPMC has the nature of the thermal gel, the product aqueous solution to form a gel exhalation after heating, dissolves after cooling, different specifications of products has different gel temperature. The solubility changes with viscosity, the lower the viscosity is, the greater the solubility is. Different specifications of HPMC its nature has certain difference, the dissove of HPMC in water are not affected by pH value.
| Generic name | Hydroxypropyl methyl cellulose |
| Abbreviations | HPMC |
| IUPAC name | Cellulose, 2-hydroxypropyl methyl |
| CAS NO. | 9004-65-3 |
| Conform to the standards | C P （中国药典） USP （美国药典） USP ( United states pharmacopoeia ) J P （日本药典） J P ( Japanese pharmacopoeia ) E P （欧洲药典） E P ( European pharmacopoeia ) |
| Chemical formula |  |
Specification
| Product Specification | |||
| Item | |||
| 60GD (2910) | 75GD(2906) | 75GD(2208) | |
| Methoxy(WT%) | 28.0–30.0 | 27.0–30.0 | 19.0–24.0 |
| Hydroxypropoxy(WT%) | 7.0–12.0 | 4.0–7.5 | 4.0–12.0 |
| Gelation temperature(℃) | 58.0–64.0 | 62.0–68.0 | 70.0–90.0 |
| Viscosity(mPa.s)(2%solu.,20℃) | 3,5,6,15,50,4000 | 50,4000 | 100, 4000, 15000, 100000 |
| Loss on drying(%) | ≤5.0 | ||
| Residue on ignition(%) | ≤1.5 | ||
| pH | 4.0–8.0 | ||
| Heavy metals(ppm) | ≤20 | ||
| Arsenic(ppm) | ≤2.0 | ||
Note:
- The United States pharmacopoeia viscosity are respectively when marking viscosity equal to or less than 100 mPa.s 80%–120%, when marking viscosity more than 100 mPa.s 75%–140%.
- The European pharmacopoeia viscosity are respectively when marking viscosity of no more than 600 mPa.s 80%–120%, when marking viscosity equal to or higher than 600 mPa.s 75%–140%.
Applications in Construction Industry
In the oral formulations,HPMC are mainly used as the tablet binders, film-coating material and the skeleton material of the sustained-release tablets;In some special preparations,mainly as suspending agents and thickeners of the ophthalmic,and also can be used as geling agent,the emulsifier of the ointments,suspensions and stabi-lizers.
Packaging and Delivery
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