2-Methylpentane
- Isohexane
- I -hexane
Colorless liquid with a faint, peculiar odor benzinartigem
Liquid
0.65 g · cm -3
-153.7 ° C
60 ° C.
227 mbar ( 20 ° C)
- Very slightly soluble in water ( 0.14 g · l-1 at 25 ° C)
- Soluble in ethanol
1.3715 (at 20 ° C, 589 nm)
Risk
Template: Infobox chemical / molecular formula search available
2-methylpentane is a chemical compound selected from the group consisting of aliphatic saturated hydrocarbons, specifically, the hexanes.
Production and representation
2-methyl pentane in the oil occurs. The compound can also be obtained by the isomerization of n-hexane.
Properties
Physical Properties
2-methylpentane is a highly flammable, volatile, colorless liquid with a faint, peculiar odor benzinartigem. The vapor pressure function is given by Antoine corresponding log10 (P) = A- ( B / ( T C )) ( P in bar, T in K) with A = 3.9640, B = 1135.41 and C = -46.578 in temperature range 286-334 K. The temperature dependence of the enthalpy of vaporization can be determined according to equation ΔVH0 = A · e ( - βTr ) (1- Tr) β ( ΔVH0 in kJ / mol, Tr = (T / Tc) reduced temperature ) with A = 45.25 kJ / mol, β = 0.2739 and Tc = 497.5 K describe the temperature range between 298 K and 333 K.
The most important thermodynamic properties are listed in the following table:
Temperature dependence of the heat of evaporation of 2-methyl propane
Safety characteristics
2-methylpentane forms flammable vapor - air mixtures. The compound has a flash point of -20 ° C. The explosive range is between 1.2 vol % (40 g/m3) as the lower explosive limit ( LEL) and 7 % by volume (250 g/m3 ) and upper explosive limit (UEL ). The ignition temperature is 300 ° C. The fabric falls within the temperature class T3.
Use
2-methylpentane is used as the solvent and is contained in detergents. The connection also serves as a reference substance in spectroscopy and chromatography.