1.06056

2-Methylbutane

for spectroscopy Uvasol^®

• Synonyma: 2-Methylbutane, iso-Pentane, Isopentane
• Empirický vzorec (Hillův zápis): C₅H₁₂
• Číslo CAS: 78-78-4
• Molekulová hmotnost: 72.15
• MDL number: MFCD00009338
• UNSPSC Code: 12191502
• EC Index Number: 201-142-8
• NACRES: NA.03
• assay: ≥99.8% (GC)
• technique(s): UV/Vis spectroscopy: suitable
• bp: 28 °C/1013 hPa
• vapor pressure: 800 hPa ( 20 °C)

Vlastnosti

• 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
• SMILES string: C(CC)(C)C
• InChI: 1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
• InChI key: QWTDNUCVQCZILF-UHFFFAOYSA-N

Popis

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

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Legal Information

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

Bezpečnostní informace

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H224,H304,H336,H411
• pcodes: 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
• supp_hazards: EUH066
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: -59.8 °F - closed cup
• flash_point_c: -51 °C - closed cup