Urethane manufacturers and suppliers

Urethane suppliers

Properties

Melting point:: 48-50 °C(lit.)

Boiling point:: 182-184 °C(lit.)

Density: 1.10

vapor density: 3.07 (vs air)

vapor pressure: 10 mm Hg ( 77.8 °C)

refractive index: 1.4144

Flash point:: 198 °F

storage temp.: Sealed in dry,Room Temperature

solubility: slightly soluble

form: Crystals or Crystalline Powder

pka: 13.58±0.50(Predicted)

color: White

PH: pH(50g/l, 25℃) : 5.0～7.0

Water Solubility: slightly soluble

Merck: 14,9874

BRN: 635810

Dielectric constant: 14.2（50℃）

Stability:: Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.

LogP: -0.150

Safety Information

Symbol(GHS): GHS07,GHS08

Signal word: Danger

Hazard statements: H302-H350

Precautionary statements: P201-P301+P312+P330-P308+P313

Hazard Codes: T

Risk Statements: 45-22

Safety Statements: 53-45-99

RIDADR: UN 3077 9 / PGIII

WGK Germany: 3

RTECS: FA8400000

TSCA: Yes

HS Code: 29241990

Toxicity: MLD i.p. in mice: 2.1-2.2 g/kg (Franklin)

Use

Confirmed carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. A transplacental carcinogen. Moderately toxic by ingestion, intraperitoneal, subcutaneous, intramuscular, parenteral, and intravenous routes. An experimental teratogen. Experimental reproductive effects. Human mutation data reported. Causes depression of bone marrow and occasionally focal degeneration in the brain. Can also produce central nervous system depression, nausea and vomiting. Has been found in over 1000 beverages sold in the United States. The most heavily contaminated liquors are bourbons, sherries, and fruit brandies (some had 1000 to 12,000 ppb urethane). Many whiskeys, table and dessert wines, brandies, and liqueurs contain potentially hazardous amounts of urethane. The allowable limit for urethane in alcoholic beverages is 125 ppb. It is formed as a side product during processing.Hot aqueous acids or alkalies decompose urethane to ethanol, carbon dioxide, and ammonia. Reacts with phosphorus pentachloride to form an explosive product. When heated it emits toxic fumes of NOx. Used as an intermedate in the manufacture of pharmaceuticals, pesticides, and fungicides. See also CARBAMATES.

You can find Urethane 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.