Indan Property

Melting point:

-51 °C (lit.)

Boiling point:

176 °C (lit.)

Density 

0.965 g/mL at 25 °C (lit.)

vapor pressure 

1.5 at 25 °C (extrapolated, Ambrose and Sprake, 1975)

refractive index 

n20/D 1.537(lit.)

Flash point:

50 °C

storage temp. 

Sealed in dry,Room Temperature

solubility 

Soluble in alcohol, ether (Weast, 1986), and many aliphatic hydrocarbons (hexane, pentane), and aromatic hydrocarbons (benzene)

pka

>14 (Schwarzenbach et al., 1993)

form 

Liquid

color 

Clear colorless to yellow

Odor Threshold

0.0037ppm

Water Solubility 

Soluble in ethanol, diethyl ether, chloroform (slightly), and ether. Insoluble in water.

Merck 

14,4931

BRN 

1904376

Henry's Law Constant

(x 10^-3 atm?m³/mol): 2.14 at 25 °C (approximate - calculated from water solubility and vapor pressure)

Stability:

Stable. Flammable. Incompatible with strong oxidizing agents.

InChIKey

PQNFLJBBNBOBRQ-UHFFFAOYSA-N

CAS DataBase Reference

496-11-7(CAS DataBase Reference)

EPA Substance Registry System

Indan (496-11-7)

Safety

Hazard Codes 

Xn,F

Risk Statements 

10-65

Safety Statements 

23-24/25-62

RIDADR 

UN 3295 3/PG 3

WGK Germany 

3

RTECS 

NK3750000

Hazard Note 

Flammable

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29029090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

Indan Chemical Properties,Usage,Production

Chemical Properties

Indane is a colourless to faintly yellow liquid. Insoluble in water, soluble in alcohol, ether and other organic solvents in any proportion.

Uses

Indane, is used as a catalytic agent, Petrochemical additive, used in organic synthesis. It is also used as pharmaceutical and chemical intermediate.

Definition

ChEBI: Indane is an ortho-fused bicyclic hydrocarbon consisting of a benzene ring fused to a cyclopentane ring; a high-boiling (176°C) colourless liquid. It is a member of indanes and an ortho-fused bicyclic hydrocarbon.

Application

Indane is used as anti-vibration agent for aviation fuel and anti-vibration agent for rubber industry. Its derivatives can be used in pharmaceuticals and solvents. Indane can be cracked to produce benzene compounds.

Preparation

Taking heavy benzene with a Indan content of 35% as a raw material, rectifying it through an emulsification tower, and cutting the 182°C fraction from the top of the tower, that is, Indan with a content of more than 90%.?

Synthesis Reference(s)

Journal of the American Chemical Society, 111, p. 314, 1989 DOI: 10.1021/ja00183a048
The Journal of Organic Chemistry, 41, p. 1184, 1976 DOI: 10.1021/jo00869a022

Hazard

Irritant to skin and eyes.

Synthesis

3-phenyl-1-propene is isomerized to give indane in the presence of AlCl3:

Source

Detected in distilled water-soluble fractions of 87 octane gasoline (0.40 mg/L), 94 octane gasoline (0.23 mg/L), Gasohol (0.50 mg/L), No. 2 fuel oil (0.05 mg/L), jet fuel A (0.15 mg/L), and diesel fuel (0.06 mg/L) (Potter, 1996). Based on laboratory analysis of 7 coal tar samples, indan concentrations ranged from ND to 3,800 ppm (EPRI, 1970).

Environmental Fate

Photolytic. Gas-phase reaction rate constants for OH radicals, NO3 radicals, and ozone at 24 °C were 1.9 x 10^-11, 6.6 x 10^-15, and <3 x 10^-19 cm³/molecule?sec, respectively (Kwok et al., 1997).

Purification Methods

Shake indane with conc H2SO4, then water, dry and fractionally distil it. [Beilstein 5 H 486, 5 I 234, 5 II 376, 5 III 1200, 5 IV 1371.]