Polyvinyl alcohols (PVA, PVOH) are water-soluble resins of low toxicity. The water solubility primarily depends upon degree of hydrolysis of polyvinyl acetate. 88% hydrolyzed product have high degree of solubility, even in cold water, but for the complete dissolution heating to 85°C is required. Higher hydrolysis grade products require progressively more energy to dissolve because of their greater degree of crystallinity. For complete dissolution, these grades require heating to ~95°C.
88 mol% hydrolyzed Polydispersity ~1.9Soluble in: DMSO, acetamide, glycols, DMF and water.
- Molecular Weight:
- Melting Point:
- 4% AQ cps = 5.2-6.2%
- Soluble In:
- hot glycerol, hot glycols, hot water.
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- Harmless-use normal precautions
- Exercise normal care
- Store at room temperature
- A2g - (hazard/handling/storage codes)