1.02822

Cyclohexane

for spectroscopy Uvasol^®

• Synonym(s): Hexahydrobenzene, Hexamethylene, Naphthene
• Empirical Formula (Hill Notation): C₆H₁₂
• CAS Number: 110-82-7
• Molecular Weight: 84.16
• Beilstein/REAXYS Number: 1900225
• MDL number: MFCD00003814
• UNSPSC Code: 12191504
• EC Index Number: 203-806-2
• NACRES: NA.03

Properties

• vapor density: 2.9 (vs air)
• Quality Level: 100
• vapor pressure: 168.8 mmHg ( 37.7 °C); 77 mmHg ( 20 °C)
• assay: ≥99.9% (GC)
• form: liquid
• autoignition temp.: 500 °F
• potency: >5000 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 9 %
• 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: 208 nm, ≥20%; 220 nm, ≥55%; 230 nm, ≥80%; 240 nm, ≥90%; 250 nm, ≥98%
• refractive index: n20/D 1.426 (lit.)
• kinematic viscosity: 1.26 cSt(20 °C)
• bp: 80.7 °C (lit.)
• mp: 4-7 °C (lit.)
• transition temp: flash point -18 °C
• density: 0.779 g/mL at 25 °C (lit.)
• UV absorption: λ: 208 nm A_max: ≤0.70; λ: 220 nm A_max: ≤0.26; λ: 230 nm A_max: ≤0.10; λ: 240 nm A_max: ≤0.05; λ: 250 nm A_max: ≤0.01
• Storage temp.: 2-30°C
• SMILES string: C1CCCCC1
• InChI: 1S/C6H12/c1-2-4-6-5-3-1/h1-6H2
• Inchi Key: XDTMQSROBMDMFD-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

• Synthesis and Characterization of Graft Copolymers with Poly(ε-caprolactone) Side Chain Using Hydroxylated Poly(β-myrcene-co-α-methyl styrene).: This article details the synthesis and characterization of novel graft copolymers, which include cyclohexane derivatives, for potential use in drug delivery systems, showcasing their thermal and chemical stability which is crucial for pharmaceutical applications (Li T et al., 2024).



• Direct Extraction and Determination of Free Nicotine in Cigarette Smoke.: This study presents a method for the direct extraction and quantitative analysis of nicotine in cigarette smoke using cyclohexane as a solvent, highlighting its efficiency and safety in analytical chemistry applications (Li L et al., 2024).

Analysis Note

Purity (GC): ≥ 99.9 %
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 208 nm): ≥ 20 %
Transmission (at 220 nm): ≥ 55 %
Transmission (at 230 nm): ≥ 80 %
Transmission (at 240 nm): ≥ 90 %
Transmission (from 250 nm): ≥ 98 %
Absorbance (at 208 nm): ≤ 0.70
Absorbance (at 220 nm): ≤ 0.26
Absorbance (at 230 nm): ≤ 0.10
Absorbance (at 240 nm): ≤ 0.05
Absorbance (from 250 nm): ≤ 0.01
Meet the requirements of "Specific use spectroscopy" according ACS and Reag. Ph Eur

Other Notes

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Legal Information

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

Safety Information

• Pictograms: GHS02,GHS07,GHS08,GHS09
• signalword: Danger
• hcodes: H225 - H304 - H315 - H336 - H410
• pcodes: P210 - P233 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Central nervous system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: -4.0 °F - closed cup
• flash_point_c: -20 °C - closed cup