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Isopentane

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Product Description

PRODUCT

Isopentane

CAS #

78-78-4

SYNONYM

Butane, 2-methyl-; Ethyldimethyl methane; Isoamylhydride; 2-Methylbutane; 1,1,2-Trimethylethane; Butane, 2-methyl-; 2-Methylbutane

FORMULA

N/A

Product Specifications

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)

AUTO IGNITION TEMP

370 C (DIN 51794)

ELECTRICAL CONDUCTIVITY @ 20C

<1 pS/m

ANILINE POINT

77 C

POUR POINT

<-50 C

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

0

MOLECULAR WEIGHT

71 g/mol

CHEMICAL STRUCTURE

Isopentane distributor CAS: 78-78-4 N/A 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

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