Poly(vinyl alcohol), MW 78000, 98% hydrolyzed (PVA 78K 98%)
CAS Number:
9002-89-5
有货
Polyvinyl alcohol (PVA, PVOH) are water-soluble resins of low toxicity. Resins at high % hydrolysis require heating at ~96°C in water for solution. Resins of lower % hydrolysis can be dissolved at progressively lower temperatures with 88% hydrolyzed resin requiring only 85°C for solution.
98 mol% hydrolyzed polyvinyl acetate (PVAc)
Shipping Requirements:
None
Melting Point:
>220°
Tg:
85°
Density:
1.29
Viscosity:
4% AQ cps = 28.5-32.5%
Solubility:
hot glycerol, hot glycols, hot water.
Molecular Weight:
~78,000
Glass Transition Temperature, Tg (ºC):
85°
Hazards:
Irritant
Handling:
Gloves & fume hood
Storage:
Store at room temperature
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