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Anthracene

Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three fused benzene rings. It is a component of coal tar. Anthracene is used in the production of the red dye alizarin and other dyes. Anthracene is colorless but exhibits a blue (400–500 nm peak) fluorescence under ultraviolet radiation.

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Further Information

Names

Preferred IUPAC name: Anthracene

Systematic IUPAC nameTricyclo[8.4.0.0]tetradeca-1,3,5,7,9,11,13-heptaene

Identifiers

CAS Number: 120-12-7

JSmol: Interactive image

Beilstein Reference: 1905429

ChEBI: CHEBI:35298

ChEMBL: ChEMBL333179

ChemSpider: 8111

DrugBank: DB07372

ECHA InfoCard: 100.003.974

EC Number: 217-004-5

Gmelin Reference: 67837

KEGG: C14315

PubChem: 8418

RTECS number: CA9350000

UNII: EH46A1TLD7

Properties

Chemical formula: C14H10

Molar mass: 178.23 g·mol

Appearance: Colorless

Odor: Weak aromatic

Density: 1.28 g/cm (25 °C)
0.969 g/cm (220 °C)33

Melting point: 215.76 °C (420.37 °F; 488.91 K) at 760 mmHg

Boiling point: 339.9 °C (643.8 °F; 613.0 K) at 760 mmHg

Solubility in water: 0.022 mg/L (0 °C)
0.044 mg/L (25 °C)
0.287 mg/L (50 °C)
0.00045% w/w (100 °C, 3.9 MPa)

Solubility: alcohol

Solubility: 0.076 g/100 g (16 °C)
1.9 g/100 g (19.5 °C)
0.328 g/100 g (25 °C)

Solubility: 1.8 g/100 g (19.5 °C)

Solubility: 0.37 g/100 g

Solubility: 0.92 g/100 g (16.5 °C)
12.94 g/100 g (100 °C)

Solubility: 0.732 g/100 g

log : 4.56

Vapor pressure: 0.01 kPa (125.9 °C)
0.1 kPa (151.5 °C)
13.4 kPa (250 °C)

Henry’s law
constant: 0.039 L·atm/mol

UV-vis: 345.6 nm, 363.2 nm

Magnetic susceptibility: −13010 cm/mol×−63

Thermal conductivity: 0.1416 W/(m·K) (240 °C)
0.1334 W/(m·K) (270 °C)
0.1259 W/(m·K) (300 °C)

Viscosity: 0.602 cP (240 °C)
0.498 cP (270 °C)
0.429 cP (300 °C)

Structure

Crystal structure: Monoclinic

Space group: P2/b1

Point group: C

Lattice constant: = 8.562 Å, = 6.038 Å, = 11.184 Å

Thermochemistry

Specific
heat capacity: 210.5 J/(mol·K)

Std molar
entropy: 207.5 J/(mol·K)

Std enthalpy of
formation: 129.2 kJ/mol

Std enthalpy of
combustion: 7061 kJ/mol

Hazards

GHS pictograms:

GHS signal word: Warning

GHS hazard statements: H315 H319 H335 H410

GHS precautionary statements: P261 P273 P305+351+338 P501

NFPA 704:

Flash point: 121 °C (250 °F; 394 K)

Autoignition
temperature: 540 °C (1,004 °F; 813 K)

median dose: 4900 mg/kg (rats, oral)

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).