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tert-Butyl methyl ether, for analysis, ExpertQ®, Reag. Ph Eur

- 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 (G.C.): min. 99,5 %
identity (IR-spectrum): passes test
density (20º/4º): 0,740 - 0,742
refractive index n20/D: 1,368 - 1,370
colour (Hazen): max. 10
acidity: max. 0,0005 meq/g
alkalinity: max. 0,0002 meq/g
aluminium (Al): max. 0,5 ppm
barium (Ba): max. 0,1 ppm
boron (B): max. 0,02 ppm
cadmium (Cd): max. 0,05 ppm
calcium (Ca): max. 0,5 ppm
chromium (Cr): max. 0,02 ppm
cobalt (Co): max. 0,02 ppm
copper (Cu): max. 0,02 ppm
iron (Fe): max. 0,1 ppm
lead (Pb): max. 0,1 ppm
magnesium (Mg): max. 0,1 ppm
manganese (Mn): max. 0,02 ppm
nickel (Ni): max. 0,02 ppm
tin (Sn): max. 0,1 ppm
zinc (Zn): max. 0,1 ppm
peroxides (as H2O2): max. 0,0005 %
residue on evaporation: max. 0,001 %
water (K.F.): max. 0,03 %