Poly(vinyl alcohol) manufacturers and suppliers

Poly(vinyl alcohol) suppliers

Properties

Melting point:: >300 °C

Boiling point:: -14.5°C (rough estimate)

Density: 1.080 g/cm3

refractive index: 1.3810 (estimate)

Flash point:: 79°C

storage temp.: Store below +30°C.

solubility: H2O: soluble (hot)

form: Powder

color: White to cream

PH: 3.5-7.0 (40g/l, H2O, 20℃)

Odor: at 100.00?%. odorless

Water Solubility: soluble in hot water

Merck: 14,7585

Dielectric constant: 1.9（Ambient）

Stability:: Stable. Combustible. Dust may form explosive mixtures with air. Incompatible with strong oxidizing agents.

Safety Information

Symbol(GHS): GHS08

Signal word: Warning

Hazard statements: H371

Precautionary statements: P260

Hazard Codes: Xn

Risk Statements: 23/24/25-36/38-39/23/24/25-68/20/21/22-20/21/22

Safety Statements: 26-36/37-45-24/25

WGK Germany: 1

RTECS: TR8100000

Autoignition Temperature: 450 °C

TSCA: Yes

HS Code: 39053000

Toxicity: LD50 orally in Rabbit: > 20000 mg/kg

Use

Polyvinyl alcohol is used primarily in topical pharmaceutical and ophthalmic formulations. It is used as a stabilizing agent for emulsions (0.25–3.0% w/v). Polyvinyl alcohol is also used as a viscosity-increasing agent for viscous formulations such as ophthalmic products. It is used in artificial tears and contact lens solutions for lubrication purposes, in sustained-release formulations for oral administration, and in transdermal patches. Polyvinyl alcohol may be made into microspheres when mixed with a glutaraldehyde solution.Polyvinyl alcohol is a tough, whitish polymerthat can be formed into strong films, tubes, andfibers that are highly resistant to hydrocarbonsolvents. Although polyvinyl alcohol is one ofthe few water-soluble polymers, it can be renderedinsoluble in water by drawing or by theuse of cross-linking agents.

You can find Poly(vinyl alcohol) suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.