439169

Etilacetato

suitable for HPLC, ≥99.8%

• Sinonimo/i: EtOAc
• Formula condensata: CH₃COOC₂H₅
• Numero CAS: 141-78-6
• Peso molecolare: 88.11
• Beilstein: 506104
• Numero CE: 205-500-4
• Numero MDL: MFCD00009171
• Codice UNSPSC: 12190000
• ID PubChem: 329756423
• NACRES: NA.21

Proprietà

• Densità del vapore: 3 (20 °C, vs air)
• Livello qualitativo: 100
• Tensione di vapore: 73 mmHg ( 20 °C)
• Saggio: ≥99.8%
• Forma fisica: liquid
• Temp. autoaccensione: 801 °F
• Limite di esplosione: 2.2-11.5 %, 38 °F
• tecniche: GC/MS: suitable; HPLC: suitable
• Impurezze: <0.050% water
• Residuo dopo evaporazione: <0.0003%
• Indice di rifrazione: n20/D 1.3720 (lit.)
• P. eboll.: 76.5-77.5 °C (lit.)
• Punto di fusione: −84 °C (lit.)
• Solubilità: alcohol: soluble(lit.); chloroform: soluble(lit.)
• Densità: 0.902 g/mL at 25 °C (lit.)
• λ: H₂O reference
• Assorbanza UV: λ: 254 nm A_max: 1.00; λ: 263 nm A_max: 0.05; λ: 275-400 nm A_max: 0.01
• applicazioni: food and beverages
• Formato: neat
• Stringa SMILE: CCOC(C)=O
• InChI: 1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3; XEKOWRVHYACXOJ-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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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Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H319,H336
• Consigli di prudenza: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Classi di pericolo: Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Organi bersaglio: Central nervous system
• Rischi supp: EUH066
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 24.8 °F - closed cup
• Punto d’infiammabilità (°C): -4 °C - closed cup