34870

Ethyl alcohol, pure

≥99.8% (GC), suitable for HPLC, absolute, sales not in Germany

• Synonym(s): Ethyl alcohol
• Linear Formula: CH₃CH₂OH
• CAS Number: 64-17-5
• Molecular Weight: 46.07
• Beilstein/REAXYS Number: 1718733
• EC Number: 200-578-6
• MDL number: MFCD00003568
• UNSPSC Code: 41116105
• PubChem Substance ID: 329755077
• NACRES: NA.05
• assay: ≥99.8% (GC)
• technique(s): HPLC: suitable
• application(s): food and beverages
• bp: 78 °C (lit.)
• vapor pressure: 44.6 mmHg ( 20 °C)

Properties

• Product Name: Ethanol, absolute, suitable for HPLC, sales not in Germany¹, ≥99.8% (GC)
• vapor density: 1.59 (vs air)
• Quality Level: 100
• vapor pressure: 44.6 mmHg ( 20 °C)
• grade: absolute
• assay: ≥99.8% (GC)
• form: liquid
• autoignition temp.: 683 °F
• quality: sales not in Germany¹
• expl. lim.: 19 %, 60 °F
• technique(s): HPLC: suitable
• impurities: ≤0.001% free acid (as CH₃COOH); ≤0.001% non-volatile matter; ≤0.2% water (Karl Fischer); ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365 nm
• transmittance: 210 nm, ≥20%; 225 nm, ≥50%; 240 nm, ≥80%; 260 nm, ≥98%
• refractive index: n20/D 1.3600 (lit.)
• pH: 7.0 (20 °C, 10 g/L)
• bp: 78 °C (lit.)
• mp: −114 °C (lit.)
• application(s): food and beverages
• format: neat
• SMILES string: CCO
• InChI: 1S/C2H6O/c1-2-3/h3H,2H2,1H3
• InChI key: LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Description

General description

Ethanol is a highly combustible colorless liquid. It is highly reactive in nature. It oxidizes to afford acetaldehyde or acetic acid. It undergoes reaction with carboxylic acid and derivatives to form esters, with aldehydes and ketones to afford acetals and ketals, respectively.[1] The monitoring of ethanol levels is very important in control of fermentation processes and in certification of alcoholic beverages.[2]

Application

Ethanol has been used in the mobile phase for the quantification of coenzyme Q10 (ubiquinone) by HPLC.[3] It has been used to compose the receptor medium to investigate the release profiles of the various pharmaceutical formulations of ketoconazole drug and their in vitro diffusion studies.[4]

Footnote

¹Distribution and use of ethyl alcohol in Switzerland require a license from the Swiss Federal Alcohol Administration

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Safety Information

• 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