8.43869

Polyvinyl alcohol, partially hydrolyzed

(Mw approx.70000) for synthesis

• Synonyma: Polyvinyl alcohol, partially hydrolyzed, PVA, PVOH
• Lineární vzorec: (C₄H₆O₂ · C₂H₄O)_n
• Číslo CAS: 25213-24-5
• UNSPSC Code: 13111042
• NACRES: NA.22

Vlastnosti

• 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

Popis

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

Bezpečnostní informace

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1