Heptane
Quantity
Unit
CAS #
142-82-5
PRODUCT
SYNONYM
Alkane C7; Dipropyl methane; n-Heptane; Heptyl hydride; Heptane; Heptane
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FORMULA
C7H16
DENSITY @ 15 ° C
0.711 kg/L
COEFFICIENT OF CUBIC EXPANSION @ 20C
13 10^-4/C
REFRACTIVE INDEX @ 20° C
1.397
COLOUR
+30 Saybolt
BROMINE INDEX
<5 mg Br/100g
DISTILLATION - INITIAL BOILING POINT
95 C
DISTILLATION - DRY POINT
99 C
RELATIVE EVAPORATION RATE (NBUAC=1)
3.9
RELATIVE EVAPORATION RATE (ETHER=1)
3.0
ANTOINE CONSTANT A #
7.72070 kPa, C
ANTOINE CONSTANT B #
2545,47 kPa, C
ANTOINE CONSTANT C #
349.430 kPa, C
TEMPERATURE LIMITS FOR ANTOINE EQUATION
+30 to +90 C
VAPOUR PRESSURE @ 0C
2.7 kPa
VAPOUR PRESSURE @ 20C
6.8 kPa
SATURATED VAPOUR CONCENTRATION @ 20C
275 g/m^3
PARAFFINS
70 % m/m
NAPHTHENES
30 % m/m
AROMATICS
<5 mg/kg
BENZENE
<3 mg/kg
N-HEXANE
<0.1 % m/m
SULPHUR
<0.5 mg/kg
FLASH POINT (ABEL)
-7 C
LOWER EXPLOSION LIMIT IN AIR
1.0 % v/v
UPPER EXPLOSION LIMIT IN AIR
7.0 % v/v
AUTO IGNITION TEMP
215 C (ASTM E659)
ELECTRICAL CONDUCTIVITY @ 20C
<1 pS/m
ANILINE POINT
61 C
POUR POINT
<-50 C
KAURI-BUTANOL NUMBER
32
VISCOSITY @ 25°C
0.64 mm^2/s
SURFACE TENSION @ 20C
21 mN/m
THERMAL CONDUCTIVITY @ 20C
0.12 W/m/C
HILDEBRAND SOLUBILITY PARAMETER
7.5 (cal/cm^3)^1/2
HYDROGEN BONDING INDEX
0
FRACTIONAL POLARITY
MOLECULAR WEIGHT
99 g/mol
CHEMICAL STRUCTURE
MELTING POINT
-91 c
ODOR
gasoline-like odor
INSOLUBILITY
in water
VAPOR PRESSURE
45.7 mm hg
REFRACTIVE INDEX
1.38764 (20 c)
COLOR
volatile colorless liquid
FLASH POINT
(cc) -3.89 c
SOLUBILITY
alcohol, ether, chloroform
BOILING POINT
98.428 c
DENSITY
0.68368 (20 c)
SURFACE TENSION
19.7 dynescm
DIELECTRIC CONSTANT
1.925
AUTO/SELF IGNITION TEMPERATURE
temp. 204 c
NOTES
Heptane is a very popular compound that is widely used as a totally non-polar solvent.
Use: SOLVENT
CLASS
Solvents - Glycols - Alcohols, Organic Intermediates and Compounds, Industrial Chemicals
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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