- Synonyms: Methyl tert-butyl ether, MTBE - C5H12O - M = 88,15 g/mol - CAS [1634-04-4] - EINECS-No.: 216-653-1 - Density: 0,74 g/cm3 - Solub. in water: (10 ºC): ~ 26 g/l - Melting point: -110 ºC - Boiling point: 55 ºC - Flash pt. -28 ºC - Ignition temp.: 460 ºC - Vapour pressure: (20 ºC) 268 hPa - Refraction index: (25 ºC) 1,3664 - LD 50 (oral, rat): 3870 mg/kg - ADR: 3 F1 II UN 2398 - IMDG: 3 II UN 2398 - IATA/ICAO: 3 II UN 2398 - GHS-signal word: Danger - GHS-H sentences: H225 - H315 - GHS-P sentences: P210 - P241 - P303+P361+P353 - P370+P378 - P405 - P501a - Tariff number: 2909 19 90 00 - Applications: analytical chemistry, laboratory reagent, chromatography, solvents, as gasoline additive. - Appearance: Colourless clear liquid SPECIFICATIONS assay: 99,9% over ramp: 40ºC, 5ºC/min identity: IR