1.14266

Polyvinyl alcohol

protective colloid for argentometric titration

• Synonym(s): Poly(vinyl alcohol), PVA, PVOH
• Linear Formula: [-CH₂CHOH-]_n
• CAS Number: 9002-89-5
• MDL number: MFCD00081922
• UNSPSC Code: 13111042
• NACRES: NB.21

Properties

• Quality Level: 100
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.001% Chloride (Cl)
• pH: 5.0-7.0 (0.2% in water)
• mp: 160-240 °C
• bulk density: 400‑670 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C2H4O/c1-2-3/h2-3H,1H2
• InChI key: IMROMDMJAWUWLK-UHFFFAOYSA-N

Description

Application

• Bioplastic Films from Moringa Oleifera Gum: This paper discusses the development of scalable and degradable bioplastic films from Moringa oleifera gum mixed with polyvinyl alcohol, intended for sustainable packaging solutions (Ranote et al., 2024).


• High-Density Polyethylene Modification: The modification of high-density polyethylene with a fibrillar-porous structure using biocompatible polyvinyl alcohol is studied to improve its mechanical properties and environmental performance (Yarysheva and Arzhakova, 2024).


• Cellulose Nanofiber Reinforced Polyvinyl Alcohol Hydrogels: This research explores the creation of high-strength, anti-fatigue cellulose nanofiber reinforced polyvinyl alcohol-based ionic conductive hydrogels, targeting applications in flexible strain/pressure sensors and triboelectric nanogenerators (Li et al., 2024).

Analysis Note

Chloride (Cl): ≤ 0.001 %
pH-value (0.2 %; water): 5.0 - 7.0
Appearance of solution: passes test
Identity (IR): passes test

Safety Information

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