494518

Ethylacetat

biotech. grade, ≥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: 12352108
• PubChem Substanz-ID: 329757457
• NACRES: NA.01

Eigenschaften

• Qualität: biotech. grade
• Dampfdichte: 3 (20 °C, vs air)
• Dampfdruck: 73 mmHg ( 20 °C)
• Assay: ≥99.8%
• Form: liquid
• Selbstzündungstemp.: 801 °F
• Expl.-Gr.: 2.2-11.5 %, 38 °F
• Verunreinigungen: ≤0.0009 meq/g Titr. acid; <0.01% 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.); water: 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
• 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 utility as a less toxic alternative to diethyl ether in the formalin-ether (F-E) sedimentation procedure for intestinal parasites has been investigated. 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. Low water content, minimal residue and clean UV spectra are the special characteristics of this biotech grade solvent. It can be utilized for biotechnological processes like protein sequencing, peptide and oligonucleotide synthesis.

Anwendung

Ethyl acetate may be used in the following processes:

• 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.

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