1.07179

n-Pentane

for spectroscopy Uvasol^®

• Synonym(s): Pentane
• Linear Formula: CH₃(CH₂)₃CH₃
• CAS Number: 109-66-0
• Molecular Weight: 72.15
• Beilstein: 969132
• MDL number: MFCD00009498
• UNSPSC Code: 12191502
• EC Index Number: 203-692-4
• NACRES: NA.03

Properties

• vapor density: 2.48 (vs air)
• Quality Level: 100
• Assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 500 °F
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• expl. lim.: ~8.3 %
• technique(s): UV/Vis spectroscopy: suitable
• impurities: ≤0.0002 meq/g Acidity; ≤0.0002 meq/g Alkalinity; ≤0.005% Water
• evapn. residue: ≤0.0002%
• color: APHA: ≤10
• transmittance: 200 nm, ≥50%; 210 nm, ≥70%; 215 nm, ≥85%; 225 nm, ≥95%; 240 nm, ≥98%
• refractive index: n20/D 1.358 (lit.)
• bp: 35-36 °C (lit.)
• mp: −130 °C (lit.)
• transition temp: flash point -48 °C (refers to pure substance)
• solubility: 0.4 g/L
• density: 0.626 g/mL at 25 °C (lit.)
• UV absorption: λ: 200 nm A_max: ≤0.30; λ: 210 nm A_max: ≤0.16; λ: 215 nm A_max: ≤0.07; λ: 225 nm A_max: ≤0.02; λ: 240 nm A_max: ≤0.01
• storage temp.: 2-30°C
• SMILES string: CCCCC
• InChI: 1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3
• InChI key: OFBQJSOFQDEBGM-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.

Application

• Quantitative determination of nitrous oxide in human blood by HS-GC-MS: forensic application of two fatal poisoning cases.: This study leverages n-Pentane in headspace gas chromatography-mass spectrometry (HS-GC-MS) for the forensic analysis of nitrous oxide in human blood. Highlighting its importance in forensic science, the research demonstrates n-Pentane′s utility in providing accurate and reliable measurements essential for legal and medical evaluations (Li Z et al., 2024).


• A photochromic trinuclear dysprosium(iii) single-molecule magnet with two distinct relaxation processes.: This article describes the use of n-Pentane in the synthesis of a dysprosium-based single-molecule magnet, showcasing its role in developing materials with unique magnetic properties for potential applications in quantum computing and data storage (Rogacz K et al., 2024).


• Reduction of Thorium Tris(amido)arene Complexes: Reversible Double and Single C-C Couplings.: This research employs n-Pentane in the study of thorium complexes, providing insights into reversible carbon-carbon coupling reactions. The findings contribute to the understanding of actinide chemistry and its application in recycling and waste reduction strategies (Deng C et al., 2024).


• Tuning Reactivities of tert-Butyllithium by the Addition of Stoichiometric Amounts of Tetrahydrofuran.: The study utilizes n-Pentane to adjust the reactivity of tert-butyllithium, illustrating its significant role in enhancing the control over chemical reactions. This advancement is pivotal for the synthesis of complex molecules in pharmaceuticals and materials science (Kleinheider J et al., 2024).


• Steps to achieve carvone-rich spearmint (Mentha spicata L.) essential oil: a case study on the use of different distillation methods.: In this research, n-Pentane is examined for its efficacy in extracting high-quality essential oils from spearmint, demonstrating its versatility in botanical extractions and its impact on the quality and characteristics of the essential oils obtained (Moradi-Sadr J et al., 2023).

Analysis Note

Purity (GC): ≥ 99.5 %
Evaporation residue: ≤ 0.0002 %
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 200 nm): ≥ 50 %
Transmission (at 210 nm): ≥ 70 %
Transmission (at 215 nm): ≥ 85 %
Transmission (at 225 nm): ≥ 95 %
Transmission (from 240 nm): ≥ 98 %
Absorbance (at 200 nm): ≤ 0.30
Absorbance (at 210 nm): ≤ 0.16
Absorbance (at 215 nm): ≤ 0.07
Absorbance (at 225 nm): ≤ 0.02
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,GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H225 - H304 - H336 - H411
• Precautionary Statements: P210 - P233 - P240 - P273 - P301 + P310 - P331
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - STOT SE 3
• Target Organs: Respiratory system
• Supplementary Hazards: EUH066
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): -40.0 °F
• Flash Point(C): -40 °C