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8.21039 Sigma-Aldrich

Polyvinyl alcohol, fully hydrolyzed

(Mw approx. 30000) for synthesis

Synonym: PVA, PVOH, Poly(vinyl alcohol)

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Properties

Quality Level   200
autoignition temp.   450 °C
potency   >20000 mg/kg LD50, oral (Rat)
pH   3.5-7.0 (20 °C, 40 g/L in H2O)
density   1.3 g/cm3 at 20 °C
InChI   1S/C2H4O/c1-2-3/h2-3H,1H2
InChI key   IMROMDMJAWUWLK-UHFFFAOYSA-N
storage conditions   Store below +30°C.

Description

Analysis Note

Degree of hydrolysis (calculated on dried substance): ≥ 98.0 %
dyn.Viscosity, 20°C (4 %; water): 3.8 - 5.2 mPa∙s
Loss on drying (110 °C 2h): ≤ 5.0 %
Ash: ≤ 1.0 %
Ester value: 12 - 25

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