Products Description
Headcel HPMC for Coating
Hydroxypropyl Methyl Cellulose specially for Coating.
Product standard Conform to CP, USP and EP.
Headcel HPMC for Coating is specially designed for Coating material of drugs, Which has good water solubility, dispersion, thickening, water retention and film forming properties, the coating film it formed is colorless, tasteless, tough and with good transparency, as a result it is widely used as drug coating materials.
Recommended application areas and performance are as follows：
1. The product is designed for coating film related product.
2. With excellent cold water solubility, the product could reduce the usage of organic solvent
3. The product has the ability to resist moisture and oxygen permeability, could improve the stability of drugs.
4. With wide applicability, the product has no crosslinking reaction risk and no interaction, high stability.
5. The product could form a tough and continuous film and coating on the surface of all kinds of tablets, and the surface mark can still be displayed.
Headcel HPMC for Coating Key attributes
|
Test Item |
Specification |
|
Appearance |
White, yellowish-white or greyish-white powder or granules, hygroscopic after drying. |
|
Solubility |
Practically insoluble in hot water, in acetone, in anhydrous ethanol and in toluene. Dissolves in cold water giving a colloidal solution. |
|
Appearance of solution |
≤ reference suspension Ⅲ. |
|
≤ reference solution Y6. |
|
|
Identification(A) |
Conforms |
|
Identification(B) |
Conforms |
|
Identification(C) |
Conforms |
|
Identification(D) |
Conforms |
|
Identification(E) |
Conforms |
|
Methoxy (%) |
28.0~30.0 |
|
Hydroxypropoxy (%) |
7.0~12.0 |
|
Viscosity(mPa·s) |
3-200000 |
|
pH (2% in Water) |
5.0~8.0 |
|
Loss on Drying (%) |
≤ 5.0 |
|
Residue on Ignition (%)/ Sulfated ash (%) |
≤ 1.5 |
|
Heavy Metals (ppm) |
≤ 10 |
Our Service
At Head, we provide the following service to customers:
Study the properties of competitor's product.
Help client to find matching grade quickly and precisely.
Formulation Service to improve performance and control cost, according to each client's specific weather condition, special sand and cement properties, and unique working habit.
At Head, we have both Chemical Lab and Application Lab to ensure each order's best satisfaction
Chemical labs is to allow us to evaluate properties as viscosity, humidity, ash level, pH, content of methyl and hydroxypropyl groups, substitution degree etc.
Application lab is to allow us to measure open time, water retention, adhesion strength, slip and sag resistance, setting time, workability etc.
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