34875

tert-Butyl méthyl éther

suitable for HPLC, ≥99.8%

• Synonyme(s) : MTBE, Éther méthylique tert-butylique
• Formule linéaire : (CH₃)₃COCH₃
• Numéro CAS: 1634-04-4
• Poids moléculaire : 88.15
• Numéro Beilstein : 1730942
• Numéro CE : 216-653-1
• Numéro MDL: MFCD00008812
• Code UNSPSC : 41116105
• ID de substance PubChem : 329755082
• Nomenclature NACRES : NA.07

Propriétés

• Densité de vapeur: 3.1 (vs air)
• Niveau de qualité: 100
• Pression de vapeur: 4.05 psi
• Pureté: ≥99.8%
• Forme: liquid
• Température d'inflammation spontanée: 705 °F
• Limite d'explosivité: 15.1 %
• Technique(s): HPLC: suitable
• Impuretés: ≤0.0005% non-volatile matter; ≤0.0005% peroxides (as H₂O₂); ≤0.002% free acid (as CH₃COOH); ≤0.01% water (Karl Fischer)
• Couleur: APHA: ≤10
• Transmittance: 220 nm, ≥40%; 250 nm, ≥80%; 260 nm, ≥90%; 290 nm, ≥99%
• Indice de réfraction: n20/D 1.369 (lit.)
• Point d'ébullition: 55-56 °C (lit.)
• Pf: -110 °C
• Densité: 0.74 g/mL at 25 °C (lit.)
• Absorption UV: λ: 210 nm A_max: ≤1.0; λ: 220 nm A_max: ≤0.40; λ: 250 nm A_max: ≤0.10; λ: 260 nm A_max: ≤0.05; λ: 300 nm A_max: ≤0.005; λ: 400 nm A_max: ≤0.005
• Application(s): food and beverages
• Chaîne SMILES: COC(C)(C)C
• InChI: 1S/C5H12O/c1-5(2,3)6-4/h1-4H3
• Clé InChI: BZLVMXJERCGZMT-UHFFFAOYSA-N

Description

Description générale

tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetic studies of its heat-assisted persulfate oxidation at various pH, temperature, oxidant concentration and ionic strength levels suggests that reaction exhibits a pseudo-first-order decay model.

Application

tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) has been used in the isolation and quantitative determination of carotenes and xanthophylls from Capsicum annum pericarp extracts by HPLC.

Autres remarques

Important notice

• The article number 34875-4X2.5L will be discontinued. Please order the single bottle 34875-2.5L which is physically identical with the same exact specifications.
• The article number 34875-6X1L will be discontinued. Please order the single bottle 34875-1L which is physically identical with the same exact specifications.

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Informations sur la sécurité

• Pictogrammes: GHS02,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H225 - H315
• Conseils de prudence: P210 - P233 - P240 - P241 - P242 - P303 + P361 + P353
• Classification des risques: Flam. Liq. 2 - Skin Irrit. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): -18.4 °F - closed cup
• Point d'éclair (°C): -28 °C - closed cup