- Melting point:
- 215 °C
- Boiling point:
- 340 °C(lit.)
- vapor density
- 6.15 (vs air)
- vapor pressure
- 1 mm Hg ( 145 °C)
- refractive index
- Flash point:
- 121 °C
- storage temp.
- APPROX 4°C
- toluene: soluble20mg/mL, clear, colorless to faintly yellow
- >15 (Christensen et al., 1975)
- Colour Index
- off-white to yellow
- explosive limit
- Water Solubility
- 0.045 mg/L (25 ºC)
- Henry's Law Constant
- 1.22 at 4 °C, 6.42 at 25 °C (dynamic equilibrium method, Bamford et al., 1999)
- CAS DataBase Reference
- 120-12-7(CAS DataBase Reference)
- NIST Chemistry Reference
- EPA Substance Registry System
- Anthracene (120-12-7)
- Risk and Safety Statements
|RIDADR||UN 3077 9/PG 3
|Autoignition Temperature||540 °C|
|Toxicity||LD50 orally in Rabbit: > 16000 mg/kg|
Anthracene price More Price(28)
|Manufacturer||Product number||Product description||CAS number||Packaging||Price||Updated||Buy|
|Sigma-Aldrich||10580||Anthracene suitable for scintillation, ≥99.0% (GC)||120-12-7||25g||$48.3||2019-12-02||Buy|
|Sigma-Aldrich||07671||Anthracene certified reference material, TraceCERT||120-12-7||100mg||$93.6||2019-12-02||Buy|
|TCI Chemical||A0405||Anthracene Zone Refined (number of passes:30) >99.5%(GC)||120-12-7||1sample||$151||2019-12-02||Buy|
|TCI Chemical||A0495||Anthracene >97.0%(GC)||120-12-7||25g||$27||2019-12-02||Buy|
|Alfa Aesar||032320||Anthracene, 90+%||120-12-7||500g||$40.6||2019-12-02||Buy|
Anthracene Chemical Properties,Uses,Production
Chemical PropertiesAnthracene is colorless, to pale yellow crystalline solid with a bluish fluorescence. PAHs are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons.
Physical propertiesWhite to yellow crystalline flakes or crystals with a bluish or violet fluorescence and a weak aromatic odor. Impurities (naphthacene, tetracene) impart a yellowish color with green fluorescence.
UsesAnthracene has been shown to be soluble in a variety of binary and ternary mixtures of cyclohexanone, ethyl acetate, and methanol 1,2.
UsesAnthracene is an aromatic hydrocarbonwith three fused rings, and is obtained by the distillationof crude oils. The main useis in the manufacture of dyes.It is an important source of dyestuffs.
Definition(C14H10) A white crystalline solid used extensively in the manufacture of dyes. Anthracene is found in the heavy- and green-oil fractions of crude oil and is obtained by fractional crystallization. Its structure is benzene-like, having three six-membered rings fused toanion gether. The reactions are characteristic of AROMATIC COMPOUNDS.
General DescriptionWhite to yellow solid with a weak aromatic odor. Sinks in water.
Air & Water ReactionsFlammable. Insoluble in water.
Reactivity ProfileAnthracene will spontaneously burst into flame on contact with chromic acid, and other strong oxidants.
HazardA questionable carcinogen.
Health HazardCarcinogenicity of anthracene is not known.Its toxicity is very low. An intraperitonealLD50 in mice is recorded at 430 mg/kg(NIOSH 1986).
Health HazardInhalation of dust irritates nose and throat. Contact with eyes causes irritation.
Fire HazardAnthracene is combustible.
Safety ProfileModerately toxic by intraperitoneal route. A skin irritant and allergen. Questionable carcinogen with experimental neoplas tigenic and tumorigenic data. Mutation data reported. Combustible when exposed to heat, flame, or oxidizing materials. Moderately explosive when exposed to flame, Ca(OCl)z, chromic acid. To fight fire, use water, foam, CO2, water spray or mist, dry chemical. Explodes on contact with fluorine.
Potential ExposureIt is used as an intermediate in dye stuffs (alizarin), insecticides, and wood preservatives; making synthetic fibers, anthraquinone, and other chemicals. May be present in coke oven emissions, diesel fuel, and coal tar pitch volitiles.
CarcinogenicityAnthracene was negative in mouse-skin-painting studies, and it is classified as a noncarcinogen by the IARC based on inadequate evidence. The methyl, anthryl, dimethyl, diprophyl, dinaphthyl, and tetramethyl derivatives of anthracene were noncarcinogenic except for 9,10-dimethyl anthracene, which may have contained impurities when tested.
SourceConcentrations in 8 diesel fuels ranged from 0.026 to 40 mg/L with a mean value of 6.275 mg/L (Westerholm and Li, 1994). Lee et al. (1992) reported concentration ranges of 100– 300 mg/L and 0.04–2 μg/L in diesel fuel and corresponding aqueous phase (distilled water), respectively. Schauer et al. (1999) reported anthracene in diesel fuel at a concentration of 5 μg/g and in a diesel-powered medium-duty truck exhaust at an emission rate of 12.5 μg/km. Anthracene was detected in a distilled water-soluble fraction of used motor oil at concentrations ranging from 1.1 to 1.3 μg/L (Chen et al., 1994).
California Phase II reformulated gasoline contained anthracene at a concentration of 4.35 μg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 3.69 and 148 μg/km, respectively (Schauer et al., 2002).
Thomas and Delfino (1991) equilibrated contaminant-free groundwater collected from Gainesville, FL with individual fractions of three individual petroleum products at 24–25 °C for 24 h. The aqueous phase was analyzed for organic compounds via U.S. EPA approved test method 625. Average anthracene concentrations reported in water-soluble fractions of kerosene and diesel fuel were 12 and 25 μg/L, respectively. Anthracene was ND in the water-soluble fraction of unleaded gasoline.
The concentration of anthracene in coal tar and the maximum concentration reported in groundwater at a mid-Atlantic coal tar site were 5,000 and 0.02 mg/L, respectively (Mackay and Gschwend, 2001). Based on laboratory analysis of 7 coal tar samples, anthracene concentrations ranged from 400 to 8,600 ppm (EPRI, 1990). A high-temperature coal tar contained anthracene at an average concentration of 0.75 wt % (McNeil, 1983). Lehmann et al. (1984) reported an anthracene concentration of 34.8 mg/g in a commercial anthracene oil.
Nine commercially available creosote samples contained anthracene at concentrations ranging from 5,500 to 14,000 mg/kg (Kohler et al., 2000).
Anthracene was detected in asphalt fumes at an average concentration of 45.89 ng/m3 (Wang et al., 2001).
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The respective gas-phase and particle-phase emission rates of anthracene were 3.44 and 0.228 mg/kg of pine burned, 2.13 and 0.0230 mg/kg of oak burned, and 1.76 and 0.0061 mg/kg of eucalyptus burned.
Under atmospheric conditions, a low rank coal (0.5–1 mm particle size) from Spain was burned in a fluidized bed reactor at seven different temperatures (50 °C increments) beginning at 650 °C. The combustion experiment was also conducted at different amounts of excess oxygen (5 to 40%) and different flow rates (700 to 1,100 L/h). At 20% excess oxygen and a flow rate of 860 L/h, the amount of anthracene emitted ranged from 558.7 ng/kg at 900 °C to 2,449.7 ng/kg at 800 °C. The greatest amount of PAHs emitted were observed at 750 °C (Mastral et al., 1999).
Environmental FateBiological. Catechol is the central metabolite in the bacterial degradation of anthracene. Intermediate by-products included 3-hydroxy-2-naphthoic acid and salicylic acid (Chapman, 1972). Anthracene was statically incubated in the dark at 25 °C with yeast extract and settled domestic wastewater inoculum. Significant biodegradation with gradual adaptation was observed. At concentrations of 5 and 10 mg/L, biodegradation yields at the end of 4 wk of incubation were 92 and 51%, respectively (Tabak et al., 1981). A mixed bacterial community isolated from seawater foam degraded anthraquinone, a photodegradation product of anthracene, to traces of benzoic and phthalic acids (Rontani et al., 1975). In activated sludge, only 0.3% mineralized to carbon dioxide after 5 d (Freitag et al., 1985).
Soil. In a 14-d experiment, [14C]anthracene applied to soil-water suspensions under aerobic and anaerobic conditions gave 14CO2 yields of 1.3 and 1.8%, respectively (Scheunert et al., 1987). The reported half-lives for anthracene in a Kidman sandy loam and McLaurin sandy loam are 134 and 50 d, respectively (Park et al., 1990).
Surface Water. The removal half-lives for anthracene in a water column at 25 °C in midsummer sunlight were 10.5 h for deep, slow, slightly turbid water; 21.6 h for deep, slow, muddy water; 8.5 h deep, slow, clear water; 3.5 h for shallow, fast, clear water, and 1.4 h for very shallow, fast, clear water (Southworth, 1977).
Photolytic. Oxidation of anthracene adsorbed on silica gel or alumina by oxygen in the presence of UV-light yielded anthraquinone. This compound additionally oxidized to 1,4-dihydroxy- 9,10-anthraquinone. Anthraquinone also formed by the oxidation of anthracene in diluted nitric acid or nitrogen oxides (quoted, Nikolaou et al., 1984) and in the dark when adsorbed on fly ash (Korfmacher et al., 1980). Irradiation of anthracene (2.6 mM) in cyclohexanone solutions gave 9,10-anthraquinone as the principal product (Korfmacher et al., 1980). Photocatalysis of anthracene and sulfur dioxide at -25 °C in various solvents yielded anthracene-9-sulfonic acid (Nielsen et al., 1983). Schwarz and Wasik (1976) reported a fluorescence quantum yield of 0.25 for anthracene in water.
Chemical/Physical. In urban air from St. Louis, MO, anthracene reacted with NOx forming 9- nitroanthracene (Ramdahl et al., 1982).
ShippingUN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Purification MethodsLikely impurities are anthraquinone, anthrone, carbazole, fluorene, 9,10-dihydroanthracene, tetracene and bianthryl. Carbazole is removed by continuous-adsorption chromatography [see Sangster & Irvine J Phys Chem 24 670 1956] using a neutral alumina column and eluting with n-hexane. [Sherwood in Purification of Inorganic and Organic Materials, Zief (ed), Marcel Dekker, New York, 1969.] The solvent is evaporated, and anthracene is sublimed under vacuum, then purified by zone refining, under N2 in darkness or non-actinic light. It has also been purified by co-distillation with ethylene glycol (boils at 197.5o), from which it can be recovered by addition of water, followed by crystallisation from 95% EtOH, *benzene, toluene, a mixture of *benzene/xylene (4:1), or Et2O. It has also been chromatographed on alumina with pet ether in a dark room (to avoid photo-oxidation of adsorbed anthracene to anthraquinone). Other purification methods include sublimation in a N2 atmosphere (in some cases after refluxing with sodium), and recrystallisation from toluene [Gorman et al. J Am Chem Soc 107 4404 1985]. Anthracene has been crystallised from EtOH, chromatographed through alumina in hot *benzene (fume hood) and then sublimed in a vacuum in a pyrex tube that has been cleaned and baked at 100o. (For further details see Craig & Rajikan J Chem Soc, Faraday Trans 1 74 292 1978, and Williams & Zboinski J Chem Soc, Faraday Trans 1 74 611 1978.) It has been chromatographed on alumina, recrystallised from n-hexane and sublimed under reduced pressure. [Saltiel J Am Chem Soc 108 2674 1986, Masnori et al. J Am Chem Soc 108 1126 1986.] Alternatively, recrystallise it from cyclohexane, chromatograph it on alumina with n-hexane as eluent, and recrystallise two more times [Saltiel et al. J Am Chem Soc 109 1209 1987]. Anthracene is fluorescent and forms a picrate complex, m 139o, on mixing the components in CHCl3 or *C6H6, but decomposes on attempted crystallization. [Beilstein 5 IV 228.]
IncompatibilitiesFinely dispersed powder may form explosive mixture in air. Contact with strong oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, chromic acid/or calcium hypochlorite.
Waste DisposalConsult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Incineration.
Anthracene Preparation Products And Raw materials
Vat Brown 3GR Early-strength admixture 1-NITROANTHRAQUINONE Pumping agent Carbazole 9-Anthraldehyde Pyromellitic Dianhydride Anthraquinone Maprotiline 9,10-Dibromoanthracene 9,10-Bis(chloromethyl)anthracene 9,10-ANTHRACENEDICARBOXALDEHYDE Slushing agent,high efficiency Phenanthrene 9-VINYLANTHRACENE 1,5-DIHYDROXYANTHRAQUINONE
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View Lastest Price from Anthracene manufacturers
|Image||Release date||Product||Price||Min. Order||Purity||Supply Ability||Manufacturer|
|US $0.10 / KG||1KG||99.0%||1000 tons||Shaanxi Dideu Medichem Co. Ltd|
|US $1.00 / KG||1KG||98%||1ton||career henan chemical co|
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