02483

Etanol

standard for GC

• Sinónimos: Alcohol etílico
• Fórmula lineal: CH₃CH₂OH
• Número de CAS: 64-17-5
• Peso molecular: 46.07
• Beilstein/REAXYS Number: 1718733
• EC Number: 200-578-6
• MDL number: MFCD00003568
• UNSPSC Code: 41116107
• PubChem Substance ID: 329747445
• NACRES: NA.24

Propiedades

• grade: analytical standard; standard for GC
• Quality Level: 100
• vapor density: 1.59 (vs air)
• vapor pressure: 44.6 mmHg ( 20 °C)
• assay: ≥99.9% (GC)
• autoignition temp.: 683 °F
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 19 %, 60 °F
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.3600 (lit.); n20/D 1.362
• bp: 78 °C (lit.)
• mp: −114 °C (lit.)
• density: 0.789 g/mL at 25 °C (lit.)
• application(s): environmental
• format: neat
• SMILES string: CCO
• InChI: 1S/C2H6O/c1-2-3/h3H,2H2,1H3
• InChI key: LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Descripción

General description

Ethanol is a clear, colorless liquid, which can prepared by fermentation of certain carbohydrates. It is used as a topical disinfectant as it has bactericidal activity. It is the primary ingredient in alcoholic beverages, and is widely used as a solvent and preservative in pharmaceutical preparations. As a solvent of substances intended for human contact or consumption, it is widely used in colorings, scents, flavorings, and medicines. Ethanol has a depressive effect on the central nervous system (CNS), and owing to its psychoactive effects, it is considered a drug. Ethanol has a complex mode of action and affects multiple systems in the brain, most notably it acts as an agonist to the GABA receptors. It is also a gasoline additive and mostly used as an alternative to petroleum as it can reduce CO and CO₂ levels during emission when compared to other fossil fuels.

Application

Ethanol has been used as internal standard in GC-MS analysis for the determination of methanol and free glycerol in biodiesel. It may have been used as reference standard in GC analysis for determination of ethanol in beer.

Other Notes

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Footnote

¹La distribución y el uso del alcohol etílico en Suiza requiere una autorización de la Swiss Federal Alcohol Administration

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Información de seguridad

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H319
• pcodes: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: 55.4 °F - closed cup
• flash_point_c: 13 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter