Tripalmitin

Tripalmitin
Names
IUPAC name
1,2,3-Propanetriyl trihexadecanoate
Other names
Palmitin; Glycerol tripalmitate; Glycerin tripalmitate; Glyceryl tripalmitate; Palmitic triglyceride; Tripalmitoyl glycerol
Identifiers
555-44-2
ChemSpider 10674
EC number 209-098-1
Jmol-3D images Image
PubChem 11147
RTECS number RT4953500
Properties
Molecular formula
 C51H98O6
Molar mass 807.32 g·mol−1
Appearance White powder
Density 0.8752 g/cm3 (70 °C)[1]
Melting point 44.7–67.4 °C (112.5–153.3 °F; 317.8–340.5 K)[2][3]
Boiling point 315 °C (599 °F; 588 K)
at 760 mmHg[1]
Insoluble
Solubility Soluble in EtOH, (C2H5)2O, C6H6, CHCl3[1]
1.4381 (80 °C)[1]
Structure
Crystal structure Triclinic (β-form)[4]
Space group P1 (β-form)[4]
Thermochemistry
Specific
heat capacity (C)
 1219.4 J/mol·K (β-form, 281.2 K)
1753.1 J/mol·K (338.8 K)[3][5]
1387.4 J/mol·K (liquid)[5]
Std enthalpy of
formation (ΔfHo298)
 −2468.7 kJ/mol[5]
Std enthalpy of
combustion (ΔcHo298)
 −31605.9 kJ/mol[5]
Hazards
EU classification Xn
R-phrases R20/22
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
0
1
0
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Tripalmitin is a triglyceride derived from the fatty acid palmitic acid.

References

  1. ↑ 1.0 1.1 1.2 1.3 Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
  2. ↑ Hong, Jindui (2010). Journal of Chemical & Engineering Data 55 (1): 297–302. Missing or empty |title= (help)
  3. ↑ 3.0 3.1 Charbonnet, G. H.; Singleton, W. S. (1947). "Thermal properties of fats and oils". Journal of the American Oil Chemists Society 24 (5): 140. doi:10.1007/BF02643296.
  4. ↑ 4.0 4.1 Van Langevelde, A.; Van Malssen, K.; Hollander, F.; Peschar, R.; Schenk, H. (1999). "Structure of mono-acid even-numbered β-triacylglycerols". Acta Crystallographica Section B Structural Science 55: 114. doi:10.1107/S0108768198009392.
  5. ↑ 5.0 5.1 5.2 5.3 Tripalmitin in Linstrom, P.J.; Mallard, W.G. (eds.) NIST Chemistry WebBook, NIST Standard Reference Database Number 69. National Institute of Standards and Technology, Gaithersburg MD. http://webbook.nist.gov (retrieved 2014-06-19)