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1.06056 Supelco

2-Methylbutane

for spectroscopy Uvasol®

Synonym: 2-Methylbutane, iso-Pentane, Isopentane

  • CAS Number 78-78-4

  • Empirical Formula (Hill Notation) C5H12

  • Molecular Weight 72.15

  •  MDL number MFCD00009338

  •  EC Index Number 201-142-8

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Properties

Related Categories Solvent by Application, Solvents, Spectrophotometric Solvents, Spectroscopy Solvents (IR, NMR, UV/Vis)
Quality Level   100
vapor pressure   800 hPa ( 20 °C)
assay   ≥99.8% (GC)
form   liquid
autoignition temp.   420 °C
expl. lim.   1.3-7.6 % (v/v)
application(s)   UV/Vis spectroscopy: suitable
bp   28 °C/1013 hPa
mp   -160 °C
transition temp   flash point -57 °C
density   0.62 g/cm3 at 20 °C
InChI   1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
InChI key   QWTDNUCVQCZILF-UHFFFAOYSA-N
storage conditions   Store below +15°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): ≥ 99.8 %
Evaporation residue: ≤ 0.0005 %
Water: ≤ 0.005 %
Colour: ≤ 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 190 nm): ≥ 50 %
Transmission (at 200 nm): ≥ 65 %
Transmission (at 210 nm): ≥ 85 %
Transmission (at 215 nm): ≥ 90 %
Transmission (from 240 nm): ≥ 98 %
Absorbance (at 190 nm): ≤ 0.30
Absorbance (at 200 nm): ≤ 0.19
Absorbance (at 210 nm): ≤ 0.07
Absorbance (at 215 nm): ≤ 0.05
Absorbance (from 240 nm): ≤ 0.01
Meet the requirements of "Specific use spectroscopy" according Reag. Ph Eur

Legal Information

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

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Protocols & Articles

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Keywords: Evaporation, Infrared spectroscopy, Purification, Sample preparations, Solvents, Spectroscopy

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