8.21039

Polyvinyl alcohol, fully hydrolyzed

(Mw approx. 30000) for synthesis

• Synonyma: Poly(vinyl alcohol), PVA, PVOH
• Lineární vzorec: [-CH₂CHOH-]_n
• Číslo CAS: 9002-89-5
• NACRES: NA.22
• UNSPSC Code: 13111042
• MDL number: MFCD00081922

Vlastnosti

• Quality Segment: 200
• 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

Popis

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

Bezpečnostní informace

• Skladovací třída: 11 - Combustible Solids
• wgk: WGK 1