2,3-dimethylbutane

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Structural formula
Structural formula of 2,3-dimethylbutane
General
Surname 2,3-dimethylbutane
other names
  • Diisopropyl
  • Tetramethylethane
Molecular formula C 6 H 14
Brief description

colorless, odorless liquid

External identifiers / databases
CAS number 79-29-8
EC number 201-193-6
ECHA InfoCard 100.001.085
PubChem 6589
ChemSpider 6340
Wikidata Q209178
properties
Molar mass 86.18 g mol −1
Physical state

liquid

density

0.66 g cm −3

Melting point

−129 ° C

boiling point

58 ° C

Vapor pressure
  • 255 hPa (20 ° C)
  • 381 hPa (30 ° C)
  • 553 hPa (40 ° C)
  • 782 hPa (50 ° C)
solubility

practically insoluble in water

Refractive index

1.375 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 08 - Dangerous to health 07 - Warning 09 - Dangerous for the environment

danger

H and P phrases H: 225-304-315-336-411
P: 210-273-301 + 310-304 + 340 + 312-331-391
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

2,3-Dimethylbutane is an organic compound from the group of alkanes . It is one of the five structural isomers of hexane .

Extraction and presentation

2,3-Dimethylbutane can be obtained by reducing isopropyl iodide with sodium in the presence of diethyl ether . Carl Schorlemmer was the first to investigate the compound intensively and used this synthetic route.

properties

2,3-Dimethylbutane is a colorless, volatile, highly flammable liquid with a mild odor that is practically insoluble in water. It exists in two conforming variants, which are included in the technical product in a ratio of 1: 2.

safety instructions

The vapors of 2,3-dimethylbutane and air form an explosive mixture ( flash point −29 ° C, ignition temperature 415 ° C).

Individual evidence

  1. a b c d e f g h i j k l m Entry on 2,3-dimethylbutane in the GESTIS substance database of the IFA , accessed on January 17, 2020(JavaScript required) .
  2. Data sheet 2,3-dimethylbutane, 98% from Sigma-Aldrich , accessed on October 12, 2011 ( PDF ).
  3. ^ Journal for the Entire Natural Sciences, Volume 31 . 1868 ( page 43 in the Google book search).
  4. Eric V. Anslyn, Dennis A. Dougherty: Modern physical organic chemistry . Palgrave Macmillan, 2005, ISBN 978-1-891389-31-3 ( page 98 in the Google book search).