439169

Acétate d'éthyle

suitable for HPLC, ≥99.8%

• Synonyme(s) : EtOAc
• Formule linéaire : CH₃COOC₂H₅
• Numéro CAS: 141-78-6
• Poids moléculaire : 88.11
• Numéro Beilstein : 506104
• Numéro CE : 205-500-4
• Numéro MDL: MFCD00009171
• Code UNSPSC : 12190000
• ID de substance PubChem : 329756423
• Nomenclature NACRES : NA.21

Propriétés

• Densité de vapeur: 3 (20 °C, vs air)
• Niveau de qualité: 100
• Pression de vapeur: 73 mmHg ( 20 °C)
• Pureté: ≥99.8%
• Forme: liquid
• Température d'inflammation spontanée: 801 °F
• Limite d'explosivité: 2.2-11.5 %, 38 °F
• Technique(s): GC/MS: suitable; HPLC: suitable
• Impuretés: <0.050% water
• Résidus d'évap.: <0.0003%
• Indice de réfraction: n20/D 1.3720 (lit.)
• Point d'ébullition: 76.5-77.5 °C (lit.)
• Pf: −84 °C (lit.)
• Solubilité: alcohol: soluble(lit.); chloroform: soluble(lit.)
• Densité: 0.902 g/mL at 25 °C (lit.)
• λ: H₂O reference
• Absorption UV: λ: 254 nm A_max: 1.00; λ: 263 nm A_max: 0.05; λ: 275-400 nm A_max: 0.01
• Application(s): food and beverages
• Format: neat
• Chaîne SMILES: CCOC(C)=O
• InChI: 1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3
• Clé InChI: XEKOWRVHYACXOJ-UHFFFAOYSA-N

Description

Description générale

Ethyl acetate (EA), a carboxylate ester, is bio-friendly organic solvent with a wide range of industrial applications. Its synthesis by reactive distillation and by acceptorless dehydrogenative dimerization of ethanol has been explored. Its ability as an acyl acceptor in the immobilized lipase-mediated preparation of biodiesel from crude vegetable oils has been examined. The complete degradation of ethyl acetate to CO₂ using manganese octahedral molecular sieve (OMS-2) has been investigated. EA is an effective alternate solvent of diethyl ether, employed for the concentration of eggs, larvae, and cysts in fecal specimens during the Formalin-ether sedimentation technique. Acetaldehyde is reaction intermediate formed during the oxidative combustion of ethanol and ethyl acetate in the presence of copper oxide embedded on Ce-doped titania surface.

Application

Ethyl acetate may be used in the following studies:

• As solvent for the isolation of Rose hip (Rosa canina L., Rosaceae) powder, via sonication.
• As solvent for the abstraction of volatile thiols from wine for their quantitative estimation by gas chromatography/mass spectrometry (GC-MS).
• Preparation of thin films of TiO₂ (titanium dioxide) on glass.
• As an extraction medium in the multi-residue analysis of pesticide residues in fruit and vegetables.
• Acetylation of primary amines to form amides in the presence of dimethyltin(IV) acetic acid distannoxane.

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Informations sur la sécurité

• Pictogrammes: GHS02,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H225,H319,H336
• Conseils de prudence: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Organes cibles: Central nervous system
• Risques supp: EUH066
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 24.8 °F - closed cup
• Point d'éclair (°C): -4 °C - closed cup