Poly (vinyl cawv) CAS 9002-89-5

CAS:9002-89-5

Molecular Formula:C2H4O

Molecular Luj:44.05256 ib

EINECS:209-183-3 ib

Synonyms:POLYVINYLALCOHOL2000; Polyvinylalcohol, 86-89% hydrolyzed, nruab nrab molecular hnyav; Polyvinylalcohol, 98-99% hydrolyzed, nruab nrab molecular hnyav; Polyvinylalcohol, 98-99% hydrolyzed, siab molecular hnyav; Poly(vinylAlcohol)n=1750+/-50; Poly(vinylAlcohol)n(=:)2,000(degree'sofsaponificationca.80mol%); POLYVINYLALCOHOL 98-99% HYDROLYZED; POLYVINYLALCOHOL 99% hmoov

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Poly (vinyl cawv) nrog CAS 9002-89-5 yog dab tsi?

Polyvinyl cawv yog dej-soluble hluavtaws polymer. Poly (vinyl cawv) tuaj yeem ua tus neeg sawv cev; roj nplua nyeem; solubilizer; tackifier.

Specification

ITEM	STANDARD	TSEEM CEEB
Qhov tshwm sim	Dawb hmoov hmoov	Tsim nyog
viscosity	21.0-33.0 Nws	28
Tus nqi PH	5.0-8.0 Nws	6.7
Degree ntawm hydrolysis%	85-89 ib	89
Poob ntawm ziab%	≤5.0	Tsim nyog
Hlawv residue%	≤1.0	Tsim nyog
Dej insoluble impurity%	≤0.1	Tsim nyog
Methanol thiab methyl acetate%	≤1.0	Tsim nyog
Acid tus nqi%	≤3.0	Tsim nyog
Hnyav hlau	≤10ppm	Tsim nyog
Assay%	85.0% mus rau 115.0%	Tsim nyog

Daim ntawv thov

Daim ntawv thov hauv kev npaj tshuaj lossis kev npaj cov txheej txheem:

Polyvinyl cawv feem ntau yog siv rau hauv tshuaj pleev ib ce thiab ophthalmic npaj;.

Polyvinyl cawv tuaj yeem siv los ua stabilizer hauv emulsions.

Polyvinyl cawv kuj yog siv los ua ib qho tackifier hauv kev npaj khov xws li cov khoom muag muag.

Polyvinyl cawv yog siv rau lubrication nyob rau hauv cov kua muag dag thiab kev daws teeb meem ntawm lub lens, thiab kuj yog siv rau hauv qhov ncauj sustained-tso npaj thiab transdermal thaj ua rau thaj.

Polyvinyl cawv kuj tuaj yeem tov nrog glutaraldehyde tov los tsim microspheres.