1.06056

2-Methylbutane

for spectroscopy Uvasol^®

• Synonym(s): 2-Methylbutane, iso-Pentane, Isopentane
• Empirical Formula (Hill Notation): C₅H₁₂
• CAS Number: 78-78-4
• Molecular Weight: 72.15
• MDL number: MFCD00009338
• UNSPSC Code: 12191502
• EC Index Number: 201-142-8
• NACRES: NA.03

Properties

• Agency: reag. Ph. Eur.
• 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)
• technique(s): UV/Vis spectroscopy: suitable
• impurities: ≤0.0002 meq/g Acidity; ≤0.0002 meq/g Alkalinity; ≤0.005% Water
• evapn. residue: ≤0.0005%
• color: APHA: ≤10
• transmittance: 190 nm, ≥50%; 200 nm, ≥65%; 210 nm, ≥85%; 215 nm, ≥90%; 240 nm, ≥98%
• bp: 28 °C/1013 hPa
• mp: -160 °C
• transition temp: flash point -57 °C
• density: 0.62 g/cm³ at 20 °C
• UV absorption: λ: 190 nm A_max: ≤0.30; λ: 200 nm A_max: ≤0.19; λ: 210 nm A_max: ≤0.07; λ: 215 nm A_max: ≤0.05; λ: 240 nm A_max: ≤0.01
• storage temp.: 2-30°C
• InChI: 1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
• InChI key: QWTDNUCVQCZILF-UHFFFAOYSA-N

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<TMSYMBOL></TMSYMBOL> 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<TMSYMBOL></TMSYMBOL> solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified.

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

Other Notes

Explore various lab safety accessories and equipment for safe handling of solvents to increase your safety level from the first usage.

Legal Information

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

Safety Information

• Pictograms: GHS02,GHS08,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H224,H304,H336,H411
• Precautionary Statements: P210 - P233 - P273 - P301 + P310 - P331 - P403 + P233
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3
• Target Organs: Central nervous system
• Supplementary Hazards: EUH066
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): -59.8 °F - closed cup
• Flash Point(C): -51 °C - closed cup