Isopentane
Quantity
Unit
CAS #
78-78-4
PRODUCT
SYNONYM
Butane, 2-methyl-; Ethyldimethyl methane; Isoamylhydride; 2-Methylbutane; 1,1,2-Trimethylethane; Butane, 2-methyl-; 2-Methylbutane
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FORMULA
N/A
DENSITY @ 15 ° C
0.624 kg/L
COEFFICIENT OF CUBIC EXPANSION @ 20C
16 10^-4/C
REFRACTIVE INDEX @ 20° C
1.354
COLOUR
+30 Saybolt
BROMINE INDEX
20 mg Br/100g
DISTILLATION - INITIAL BOILING POINT
28 C
DISTILLATION - DRY POINT
32 C
RELATIVE EVAPORATION RATE (NBUAC=1)
15
RELATIVE EVAPORATION RATE (ETHER=1)
<1.0
ANTOINE CONSTANT A #
7.17660 kPa, C
ANTOINE CONSTANT B #
1791.83 kPa, C
ANTOINE CONSTANT C #
318.690 kPa, C
TEMPERATURE LIMITS FOR ANTOINE EQUATION
-5 to +25 C
VAPOUR PRESSURE @ 0C
36 kPa
VAPOUR PRESSURE @ 20C
77 kPa
SATURATED VAPOUR CONCENTRATION @ 20C
2275 g/m^3
PARAFFINS
>99 % m/m
NAPHTHENES
<1 % m/m
AROMATICS
<5 mg/kg
BENZENE
<3 mg/kg
N-HEXANE
<0.1 % m/m
SULPHUR
<0.5 mg/kg
FLASH POINT (ABEL)
<-50 C
LOWER EXPLOSION LIMIT IN AIR
1.3 % v/v
UPPER EXPLOSION LIMIT IN AIR
7.6 % v/v
AUTO IGNITION TEMP
468 C (ASTM E659)
370 C (DIN 51794)
ELECTRICAL CONDUCTIVITY @ 20C
<1 pS/m
ANILINE POINT
77 C
POUR POINT
KAURI-BUTANOL NUMBER
29
VISCOSITY @ 25°C
0.35 mm^2/s
SURFACE TENSION @ 20C
15 mN/m
THERMAL CONDUCTIVITY @ 20C
0.11 W/m/C
HILDEBRAND SOLUBILITY PARAMETER
6.8 (cal/cm^3)^1/2
HYDROGEN BONDING INDEX
0
FRACTIONAL POLARITY
MOLECULAR WEIGHT
71 g/mol
CHEMICAL STRUCTURE
ODOR
gasoline-like odor
INSOLUBILITY
in water
VAPOR PRESSURE
595 mm hg (21 c)
COLOR
colorless volatile liquid
FLASH POINT
-51 c
SOLUBILITY
hydrocarbons, alcohol, oils, ether
BOILING POINT
27.85 c
DENSITY
0.625 (20 c)
NOTES
Use: PROPELLANT, SOLVENT, VISCOSITY CONTROLLING
CLASS
Solvents - Glycols - Alcohols, Organic Intermediates and Compounds
FUNCTIONS
Solvents, Drilling Fluid Additives, Organic Intermediate
INDUSTRY
Industrial, Industrial Drilling, Oil and Gas Production, Drilling Fluid, Hydraulic Fracturing, Fracking, Organics, Solvents
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