Butyryl chloride

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Structural formula
Structural formula of butyryl chloride
General
Surname Butyryl chloride
other names
  • Butyric acid chloride
  • Butanoyl chloride
Molecular formula C 4 H 7 ClO
Brief description

colorless liquid with a pungent odor

External identifiers / databases
CAS number 141-75-3
EC number 205-498-5
ECHA InfoCard 100.004.999
PubChem 8855
Wikidata Q5003202
properties
Molar mass 106.55 g mol −1
Physical state

liquid

density

1.03 g cm −3

Melting point

−89 ° C

boiling point

101 ° C

Vapor pressure

39 mbar (20 ° C)

solubility
  • decomposes in water
  • miscible with ethanol
Refractive index

1.412 (20 ° C, 589 nm)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
02 - Highly / extremely flammable 06 - Toxic or very toxic 05 - Corrosive

danger

H and P phrases H: 225-290-302-331-314
P: 210-280-301 + 330 + 331-305 + 351 + 338-309 + 310-403 + 235
Toxicological data
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

Butyryl chloride is a chemical compound from the group of organic carboxylic acid halides .

Extraction and presentation

Butyryl chloride can be obtained by reacting butyric acid with thionyl chloride .

properties

Butyryl chloride is a volatile, highly flammable, moisture-sensitive, colorless liquid with a pungent odor that decomposes in water. Your aqueous solution is acidic.

use

Butyryl chloride can be used in organic chemistry for Friedel-Crafts reactions.

safety instructions

The vapors of butyryl chloride form explosive mixtures with air ( flash point : 8 ° C, ignition temperature : 280 ° C).

Individual evidence

  1. a b c d e f g h i j Entry on butyryl chloride in the GESTIS substance database of the IFA , accessed on July 23, 2016(JavaScript required) .
  2. David R. Lide (Ed.): CRC Handbook of Chemistry and Physics 2012-2013 . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 3–78 ( limited preview in Google Book search).
  3. a b c d data sheet butyric acid chloride (PDF) from Merck , accessed on March 1, 2013.
  4. Entry on Butyryl chloride in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ^ VK Ahluwalia, R. Aggarwal: Comprehensive Practical Organic Chemistry: Preparations And Quantitative Analysis . University Press (India), 2000, ISBN 81-7371-475-4 , pp. 15 ( limited preview in Google Book search).
  6. ^ Hisashi Yamamoto, Koichiro Oshima: Main Group Metals in Organic Synthesis . John Wiley & Sons, 2006, ISBN 978-3-527-60535-4 , pp. 370 ( limited preview in Google Book search).