Lauric acid

Lauric acid
Names
	Preferred IUPAC name Dodecanoic acid
	Other names n-Dodecanoic acid, Dodecylic acid, Dodecoic acid, Laurostearic acid, Vulvic acid, 1-Undecanecarboxylic acid, Duodecylic acid, C12:0 (Lipid numbers)
Identifiers
CAS Number	143-07-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30805 ;
ChEMBL	ChEMBL108766 ;
ChemSpider	3756 ;
ECHA InfoCard	100.005.075
EC Number	205-582-1;
IUPHAR/BPS	5534;
KEGG	C02679 ;
PubChem CID	3893;
UNII	1160N9NU9U ;
CompTox Dashboard (EPA)	DTXSID5021590 ;
	InChI InChI=1S/C12H24O2/c1-2-3-4-5-6-7-8-9-10-11-12(13)14/h2-11H2,1H3,(H,13,14) Key: POULHZVOKOAJMA-UHFFFAOYSA-N ; InChI=1/C12H24O2/c1-2-3-4-5-6-7-8-9-10-11-12(13)14/h2-11H2,1H3,(H,13,14) Key: POULHZVOKOAJMA-UHFFFAOYAP;
	SMILES O=C(O)CCCCCCCCCCC;
Properties
Chemical formula	C12H24O2
Molar mass	200.322 g·mol−1
Appearance	White powder
Odor	Slight odor of bay oil
Density	1.007 g/cm3 (24 °C); 0.8744 g/cm3 (41.5 °C); 0.8679 g/cm3 (50 °C)
Melting point	43.8 °C (110.8 °F; 316.9 K)
Boiling point	297.9 °C (568.2 °F; 571.0 K) ; 282.5 °C (540.5 °F; 555.6 K); at 512 mmHg; 225.1 °C (437.2 °F; 498.2 K); at 100 mmHg
Solubility in water	37 mg/L (0 °C); 55 mg/L (20 °C); 63 mg/L (30 °C); 72 mg/L (45 °C); 83 mg/L (100 °C)
Solubility	Soluble in alcohols, diethyl ether, phenyls, haloalkanes, acetates
Solubility in methanol	12.7 g/100 g (0 °C); 120 g/100 g (20 °C); 2250 g/100 g (40 °C)
Solubility in acetone	8.95 g/100 g (0 °C); 60.5 g/100 g (20 °C); 1590 g/100 g (40 °C)
Solubility in ethyl acetate	9.4 g/100 g (0 °C); 52 g/100 g (20°C); 1250 g/100 g (40°C)
Solubility in toluene	15.3 g/100 g (0 °C); 97 g/100 g (20°C); 1410 g/100 g (40°C)
log P	4.6
Vapor pressure	2.13·10−6 kPa (25 °C); 0.42 kPa (150 °C); 6.67 kPa (210 °C)
Acidity (pKa)	5.3 (20 °C)
Thermal conductivity	0.442 W/m·K (solid); 0.1921 W/m·K (72.5 °C); 0.1748 W/m·K (106 °C)
Refractive index (nD)	1.423 (70 °C); 1.4183 (82 °C)
Viscosity	6.88 cP (50 °C); 5.37 cP (60 °C)
Structure
Crystal structure	Monoclinic (α-form); Triclinic, aP228 (γ-form)
Space group	P21/a, No. 14 (α-form); P1, No. 2 (γ-form)
Point group	2/m (α-form); 1 (γ-form)
Lattice constant	a = 9.524 Å, b = 4.965 Å, c = 35.39 Å (α-form) α = 90°, β = 129.22°, γ = 90°
Thermochemistry
Heat capacity (C)	404.28 J/mol·K
Std enthalpy of; formation (ΔfH⦵298)	−775.6 kJ/mol
Std enthalpy of; combustion (ΔcH⦵298)	7377 kJ/mol; 7425.8 kJ/mol (292 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H318
Precautionary statements	P280, P305+P351+P338
NFPA 704 (fire diamond)	1 1 1
Flash point	> 113 °C (235 °F; 386 K)
Related compounds
Related compounds	Glyceryl laurate
Related compounds
Related compounds	Undecanoic acid; Tridecanoic acid; Dodecanol; Dodecanal; Sodium lauryl sulfate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Lauric acid, systematically dodecanoic acid, is a saturated fatty acid with a 12-carbon atom chain, thus having many properties of medium-chain fatty acids. It is a bright white, powdery solid with a faint odor of bay oil or soap. The salts and esters of lauric acid are known as laurates. Lauric acid accounts for nearly half of the fat in coconut oil and palm kernel oil.