3-Pentanone

3-Pentanone
Skeletal formula of 3-pentanone
Ball-and-stick model of 3-pentanone
Names
Preferred IUPAC name
Pentan-3-one
Other names
Diethyl ketone, diethylketone, 3-pentanone, dimethyl acetone, propione, DEK, metacetone, methacetone, ethyl ketone fraction
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.002.265 Edit this at Wikidata
EC Number
  • 202-490-3
RTECS number
  • SA8050000
UNII
UN number 1156
  • InChI=1S/C5H10O/c1-3-5(6)4-2/h3-4H2,1-2H3 checkY
    Key: FDPIMTJIUBPUKL-UHFFFAOYSA-N checkY
  • InChI=1/C5H10O/c1-3-5(6)4-2/h3-4H2,1-2H3
    Key: FDPIMTJIUBPUKL-UHFFFAOYAJ
  • O=C(CC)CC
Properties
C5H10O
Molar mass 86.134 g·mol−1
Appearance Colorless liquid[1]
Odor Acetone-like[2]
Density 0.81 g/cm3 at 20 °C[2]
Melting point −39 °C (−38 °F; 234 K)[2]
Boiling point 102 °C (216 °F; 375 K)[2]
35 g/L[2]
Vapor pressure 35 mmHg[1]
-58.14·10−6 cm3/mol
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
Danger
H225, H335, H336
P210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P340, P312, P370+P378, P403+P233, P403+P235, P405, P501
Flash point 12.78 °C (55.00 °F; 285.93 K)
425 °C (797 °F; 698 K)
Explosive limits 1.6%-6.4%[1]
NIOSH (US health exposure limits):
PEL (Permissible)
 none[1]
REL (Recommended)
 TWA 200 ppm (705 mg/m3)[1]
IDLH (Immediate danger)
 N.D.[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

3-Pentanone (also known as diethyl ketone) is a simple, symmetrical dialkyl ketone. It is a colorless liquid ketone with an odor like that of acetone. It is soluble in about 25 parts water, but miscible with organic solvents.

  1. ^ a b c d e f NIOSH Pocket Guide to Chemical Hazards. "#0212". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ a b c d e Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health