3,3-dimethylbutene

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Structural formula
Structural formula of 3,3-dimethylbutene
General
Surname 3,3-dimethylbutene
other names
  • 3,3-dimethyl-1-butene
  • Neo-witches
Molecular formula C 6 H 12
Brief description

colorless and odorless liquid

External identifiers / databases
CAS number 558-37-2
EC number 209-195-9
ECHA InfoCard 100.008.361
PubChem 11210
ChemSpider 10737
Wikidata Q2129015
properties
Molar mass 84.16 g mol −1
Physical state

liquid

density

0.65 g cm −3

Melting point

-115 ° C

boiling point

41 ° C

Vapor pressure

489 hPa (21 ° C)

solubility
Refractive index

1.376 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 08 - Dangerous to health

danger

H and P phrases H: 225-304
P: 210-301 + 310-331-370 + 378-403 + 235
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

3,3-Dimethylbutene is a chemical compound from the group of aliphatic , unsaturated hydrocarbons .

Extraction and presentation

3,3-dimethylbutene can by alkene metathesis of technical Isooctene with ethylene in a cross-metathesis to 3,3-dimethylbutene and iso -butene are obtained.

Neohexen-Prozess.svg

properties

3,3-Dimethylbutene is a colorless and odorless liquid that is practically insoluble in water.

use

3,3-Dimethylbutene is used in the manufacture of fragrances ( musk ).

Individual evidence

  1. a b c d e f g h i Entry on 3,3-dimethylbutene in the GESTIS substance database of the IFA , accessed on January 10, 2019(JavaScript required) .
  2. a b c David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 214 ( limited preview in Google Book search).
  3. Data sheet 3,3-dimethyl-1-butene, ≥98.5% (GC) from Sigma-Aldrich , accessed on January 10, 2019 ( PDF ).
  4. ^ A b Christoph Janiak, Hans-Jürgen Meyer, Dietrich Gudat, Ralf Alsfasser: Riedel Modern Inorganic Chemistry . 4th edition. Walter de Guyter., Berlin / Boston, ISBN 978-3-11-024900-2 , pp. 822 .
  5. Ezat Khosravi, T. Szymanska-Buzar: Ring Opening Metathesis Polymerization and Related Chemistry State of the Art and Visions for the New Century . Springer Science & Business Media, 2012, ISBN 978-94-010-0373-5 , pp. 250 ( limited preview in Google Book Search).
  6. ^ DH Pybus, CS Sell: The Chemistry of Fragrances . Royal Society of Chemistry, 1999, ISBN 978-0-85404-528-0 , pp. 96 ( limited preview in Google Book search).