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8.43869

Sigma-Aldrich

Polyvinyl alcohol, partially hydrolyzed

(Mw approx.70000) for synthesis

Synonym(s):

Polyvinyl alcohol, partially hydrolyzed, PVA, PVOH

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About This Item

Linear Formula:
(C4H6O2 · C2H4O)n
CAS Number:
25213-24-5
UNSPSC Code:
13111042
NACRES:
NA.22

Quality Level

200

form

solid

autoignition temp.

>230 °C

mp

>200 °C

density

1.3 g/cm3 at 20 °C

bulk density

400‑600 kg/m3

storage temp.

2-30°C

Analysis Note

Degree of hydrolysis (calculated on dried substance): ≥ 85.0 %
dyn.Viscosity, 20°C (4 %; water): 6.8 - 9.2 mPa∙s
Loss on drying (110 °C 2h): ≤ 5.0 %
Ash: ≤ 1.0 %
Ester value: 130 - 150

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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