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439177 Sigma-Aldrich

Hexane

for HPLC, ≥95%

Synonym: n-Hexane

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Chromatography Reagents & Solvents, HPLC Grade Solvents, HPLC Solvents,
grade   for HPLC
vapor density   ~3 (vs air)
vapor pressure   256 mmHg ( 37.7 °C)
  5.2 psi ( 37.7 °C)
  ~132 mmHg ( 20 °C)
InChI Key   VLKZOEOYAKHREP-UHFFFAOYSA-N
assay   ≥95%
autoignition temp.   453 °F
expl. lim.   7.7 %
impurities   <0.020% water
evapn. residue   <0.0005%
refractive index   n20/D 1.375(lit.)
bp   69 °C(lit.)
mp   −95 °C(lit.)
solubility   ethanol: soluble(lit.)
density   0.659 g/mL at 25 °C(lit.)
λ   H2O reference
UV absorption   λ: 195 nm Amax: 1.00
  λ: 210 nm Amax: 0.30
  λ: 220 nm Amax: 0.10
  λ: 230 nm Amax: 0.05
  λ: 240 nm Amax: 0.02
  λ: 250-400 nm Amax: 0.01

Description

Packaging

4×4 L in PVC-coated bottle

Application

Hexane may be used in the following studies:
• Preparation of graft-copolymer chains of poly-(dimethylsiloxane)-g-poly(methyl methacrylate).
• GC/MS characterization of essential oils isolated from various origins.
• As solvent for the preparation of samples and standards during chromatographic studies.
• To extract free and total gossypol in combination with acetone from cottonseed flakes.

General description

Hexane (n-hexane) is an alkane hydrocarbon that can be obtained from petroleum by distillation. It can also be produced by electrolyzing the potassium butyrate solution. It is widely employed organic solvent for the dissolution and isolation of fats and oils. Its thermodynamic properties and kinetics of thermal decomposition have been studied over a range of temperature. A study on the zeolite supported platinum catalyzed isomerization and aromatization of n-hexane has been reported. Its removal from hexane contaminated air streams using vapor phase biological reactor (VPBR) immobilized with hexane-degrading Aspergillus niger strain has been studied. The metabolism of n-hexane forms 2,5-hexanedione (2,5-HD), which is reported to induce neurotoxicity.

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Safety & Documentation

Safety Information

Signal word 
Danger
Precautionary statements 
RIDADR 
UN1208 - class 3 - PG 2 - Hexanes
WGK Germany 
2
RTECS 
MN9275000
Flash Point(F) 
-14.8 °F
Flash Point(C) 
-26 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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