Indane

• Hydrindene
• 1H- benzene -2, 3 -cyclopenten
• 1H - indene benzenepentacarboxylic
• Cyclopentenbenzol
• 2,3- dihydroindene

Colorless liquid

Liquid

0.96 g · cm -3

-51 ° C

178 ° C

In water 0.109 g / l (25 ° C), slightly soluble in ethanol and diethyl ether

1.5378 (20 ° C)

Risk

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Indane (stress on the last syllable: indane ) is a chemical compound from the group of bicyclic aromatic hydrocarbons.

Production and representation

Indane is distributed in coal tar, the primary tar and as a structural element in indene resin before. It can be produced from indene by catalytic hydrogenation over platinum catalysts using hydrogen or by reduction with metallic sodium in ethanol.

Properties

Indane is a colorless liquid with an aromatic odor, boiling at atmospheric pressure at 178 ° C. The heat of vaporization of 49.2 kJ mol -1. The solids can exist in two polymorphic crystal forms. The transition temperature of Form II to Form I is at -199 ° C. Form I melts at -51 ° C.. The heat of fusion of 8.6 kJ · mol -1, the heat of transformation from Form II to Form I 0.8 kJ · mol -1.

The temperature dependence of the enthalpy of vaporization can be determined according to equation ΔVH0 = A · exp (- β · Tr ) (1- Tr) β ( ΔVH0 in kJ / mol, Tr = (T / Tc) reduced temperature ) with A = 65.1 kJ / mol, β = 0.2866 and Tc = 684.9 K describe the temperature range between 302 K and 339 K.

Use

Indane can be converted by dehydrogenation in indene. Derivatives ( Indane ) are widely used as antibiotics, heart drugs, insecticides and fragrances ( musk ). A well-known derivative of indane is ninhydrin.

Related compounds

• Indene
• 1,3 - indandione
• Diphacinone
• Chlordane
• Chlorphacinon