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.