What is Poly(vinyl alcohol) with CAS 9002-89-5?
Specification
| ITEM | STANDARD | RESULT |
| Appearance | White solid powder | Qualified |
| Viscosity | 21.0～33.0 | 28 |
| PH value | 5.0～8.0 | 6.7 |
| Degree of hydrolysis% | 85～89 | 89 |
| Loss on drying% | ≤5.0 | Qualified |
| Burning residue% | ≤1.0 | Qualified |
| Water insoluble impurity% | ≤0.1 | Qualified |
| Methanol and methyl acetate% | ≤1.0 | Qualified |
| Acid value% | ≤3.0 | Qualified |
| Heavy metal | ≤10ppm | Qualified |
| Assay% | 85.0%～115.0% | Qualified |
Application
Application in pharmaceutical preparations or preparation processes: Polyvinyl alcohol is mainly used in topical and ophthalmic preparations;. Polyvinyl alcohol can be used as a stabilizer in emulsions. Polyvinyl alcohol is also used as a tackifier in viscous preparations such as ophthalmic products. Polyvinyl alcohol is used for lubrication in artificial tears and contact lens solutions, and is also used in oral sustained-release preparations and transdermal patches. Polyvinyl alcohol can also be mixed with glutaraldehyde solution to form microspheres.Package
25kg/drum or requirement of clients.
Poly(Vinyl Alcohol) With CAS 9002-89-5
Poly(Vinyl Alcohol) With CAS 9002-89-5