Heneicosane

Heneicosane
Structural formula of heneicosane
Names
Preferred IUPAC name
Henicosane
Other names
n-Heneicosane
Identifiers
3D model (JSmol)
1748500
ChEBI
ECHA InfoCard 100.010.109 Edit this at Wikidata
EC Number
  • 211-118-9
UNII
  • InChI=1S/C21H44/c1-3-5-7-9-11-13-15-17-19-21-20-18-16-14-12-10-8-6-4-2/h3-21H2,1-2H3 checkY
    Key: FNAZRRHPUDJQCJ-UHFFFAOYSA-N checkY
  • CCCCCCCCCCCCCCCCCCCCC
Properties
C21H44
Molar mass 296.583 g·mol−1
Appearance Waxy solid
Density 0.7919 g mL−1
Melting point 40.5 °C (104.9 °F; 313.6 K)
Boiling point 356.10 °C; 672.98 °F; 629.25 K
2.9×10−11 g/L
log P 10.65
Vapor pressure 8.73X10-5 mm Hg
120 atm•m3/mole
1.4441
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
Flash point 113 °C (235 °F; 386 K)
Related compounds
Related alkanes
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Heneicosane is the organic compound with the formula CH3(CH2)19CH3. It is the straight chain, saturated C21 hydrocarbon. It is a white wax.