439169

Ethylacetat

suitable for HPLC, ≥99.8%

• Synonym(e): EtOAc
• Lineare Formel: CH₃COOC₂H₅
• CAS-Nummer: 141-78-6
• Molekulargewicht: 88.11
• Beilstein: 506104
• EG-Nummer: 205-500-4
• MDL-Nummer: MFCD00009171
• UNSPSC-Code: 12190000
• PubChem Substanz-ID: 329756423
• NACRES: NA.21

Eigenschaften

• Dampfdichte: 3 (20 °C, vs air)
• Qualitätsniveau: 100
• Dampfdruck: 73 mmHg ( 20 °C)
• Assay: ≥99.8%
• Form: liquid
• Selbstzündungstemp.: 801 °F
• Expl.-Gr.: 2.2-11.5 %, 38 °F
• Methode(n): GC/MS: suitable; HPLC: suitable
• Verunreinigungen: <0.050% water
• Abdampfrückstand: <0.0003%
• Brechungsindex: n20/D 1.3720 (lit.)
• bp: 76.5-77.5 °C (lit.)
• mp (Schmelzpunkt): −84 °C (lit.)
• Löslichkeit: alcohol: soluble(lit.); chloroform: soluble(lit.)
• Dichte: 0.902 g/mL at 25 °C (lit.)
• λ: H₂O reference
• UV-Absorption: λ: 254 nm A_max: 1.00; λ: 263 nm A_max: 0.05; λ: 275-400 nm A_max: 0.01
• Anwendung(en): food and beverages
• Format: neat
• SMILES String: CCOC(C)=O
• InChI: 1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3
• InChIKey: XEKOWRVHYACXOJ-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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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Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Danger
• H-Sätze: H225,H319,H336
• P-Sätze: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Zielorgane: Central nervous system
• Zusätzliche Gefahrenhinweise: EUH066
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): 24.8 °F - closed cup
• Flammpunkt (°C): -4 °C - closed cup