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1.00980 Supelco

Ethanol

for spectroscopy Uvasol®

Synonym: Ethyl alcohol

  • CAS Number 64-17-5

  • Linear Formula CH3CH2OH

  • Molecular Weight 46.07

  •  Beilstein/REAXYS Number 1718733

  •  MDL number MFCD00003568

  •  EC Index Number 200-578-6

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, IR Spectroscopy Solvents, Infrared (IR) Spectroscopy, Spectroscopy More...
Quality Level   100
vapor density   1.59 (vs air)
vapor pressure   44.6 mmHg ( 20 °C)
  59 hPa ( 20 °C)
assay   ≥99.9% (GC)
form   liquid
autoignition temp.   683 °F
potency   6200 mg/kg LD50, oral (Rat)
expl. lim.   19 %, 60 °F
application(s)   UV/Vis spectroscopy: suitable
refractive index   n20/D 1.3600 (lit.)
pH   7.0 (20 °C, 10 g/L in H2O)
bp   78 °C (lit.)
mp   −114 °C (lit.)
transition temp   flash point 12 °C
density   0.789 g/mL at 25 °C (lit.)
SMILES string   CCO
InChI   1S/C2H6O/c1-2-3/h3H,2H2,1H3
InChI key   LFQSCWFLJHTTHZ-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

General description

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph Eur and ACS.

Analysis Note

Purity (GC): ≥ 99.9 %
Evaporation residue: ≤ 0.0002 %
Water: ≤ 0.05 %
Color: ≤ 10 Hazen
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb
Fluorescence (as quinine at 365 nm): ≤ 1.0 ppb
Transmission (at 207 nm): ≥ 20 %
Transmission (at 220 nm): ≥ 55 %
Transmission (at 235 nm): ≥ 80 %
Transmission (at 240 nm): ≥ 85 %
Transmission (at 245 nm): ≥ 90 %
Transmission (from 260 nm): ≥ 98 %
Absorbance (at 207 nm): ≤ 0.70
Absorbance (at 220 nm): ≤ 0.26
Absorbance (at 235 nm): ≤ 0.10
Absorbance (at 240nm): ≤ 0.07
Absorbance (at 245 nm): ≤ 0.05
Absorbance (from 260 nm): ≤ 0.01

Footnote

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

Legal Information

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

Protocols & Articles

Articles

Solvents for Spectroscopy Uvasol®

Best Optical and Chemical Purity for Reliable Spectroscopy Results In spectroscopy applications, accurate analytic results depend on the use of very pure solvents for sample preparation. Uvasol® solv...
Keywords: Evaporation, Infrared spectroscopy, Purification, Sample preparations, Solvents, Spectroscopy

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