Poly(vinyl alcohol) (PVA) CAS 9002-89-5 - Image 2

Poly(vinyl alcohol) (PVA) CAS 9002-89-5

CAS: 9002-89-5
Molecular Formula: C2H4O
Molecular Weight: 44.05256
Appearance: White solid powder
EINECS: 209-183-3
Product Categories: Organic chemistry

Synonyms: POLYVINYLALCOHOL2000; Polyvinylalcohol,86-89%hydrolyzed,mediummolecularweight; Polyvinylalcohol,98-99%hydrolyzed,mediummolecularweight; Polyvinylalcohol,98-99%hydrolyzed,hiChemicalbookghmolecularweight; Poly(vinylAlcohol)n=1750+/-50; Poly(vinylAlcohol)n(=:)2,000(degree’sofsaponificationca.80mol%); POLYVINYLALCOHOL98-99%HYDROLYZED; POLYVINYLALCOHOL99%POWDER

What Is Poly(vinyl alcohol) (PVA) CAS 9002-89-5?

Poly(vinyl alcohol) (PVA) CAS 9002-89-5 is a water-soluble synthetic polymer. It can be coating agent; lubricant; solubilizer; tackifier.

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

1. Application in pharmaceutical preparations or preparation processes:
2. Polyvinyl alcohol is mainly used in topical and ophthalmic preparations;.
3. Polyvinyl alcohol can be used as a stabilizer in emulsions.
4. Polyvinyl alcohol is also used as a tackifier in viscous preparations such as ophthalmic products.
5. 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.
6. Polyvinyl alcohol can also be mixed with glutaraldehyde solution to form microspheres.