8.21039
Polyvinyl alcohol, fully hydrolyzed
(Mw approx. 30000) for synthesis
Synonym(s):
Poly(vinyl alcohol), PVA, PVOH
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About This Item
Linear Formula:
[-CH2CHOH-]n
CAS Number:
NACRES:
NA.22
UNSPSC Code:
13111042
MDL number:
Quality Segment
form
powder
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
storage temp.
2-30°C
InChI
1S/C2H4O/c1-2-3/h2-3H,1H2
InChI key
IMROMDMJAWUWLK-UHFFFAOYSA-N
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
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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Storage Class
11 - Combustible Solids
wgk
WGK 1
Certificates of Analysis (COA)
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