| Identification | More | [Name]
BENZO(K)FLUORANTHENE | [CAS]
207-08-9 | [Synonyms]
11,12-BENZOFLUORANTHENE
BENZO(K)FLUORANTHENE
11,12-benzo(k)fluoranthene
2,3,1',8'-Binaphthylene
2,3,1’,8’-binaphthylene
8,9-benzfluoranthene
8,9-Benzofluoranthene
dibenzo(b,jk)fluorene
Dibenzo[b,jk]fluorene
BENZO(K)FLUORANTHENE, 1X1ML, CH2CL2, 200 UG/ML
BENZO(K)FLUORANTHENE, 1X1ML, ACET, 1000U G/ML
BENZO(K)FLUORANTHENE, 50MG, NEAT
48332, Benzo[k]fluoranthene (purity)
BENZO(K)FLUORANTHENE, FOR FLUORESCENCE
Benzo[k]fluorathene
Benzo[k]fluoranthene, 99+%
benzo[k]fluoranthene solution
BENZO(K)FLUOROANTHENE
BENZO(K)FLUORANTHRENE
Benzo(k)fluoranthen | [EINECS(EC#)]
205-916-6 | [Molecular Formula]
C20H12 | [MDL Number]
MFCD00046287 | [Molecular Weight]
252.31 | [MOL File]
207-08-9.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow crystals | [Melting point ]
215-217 °C(lit.)
| [Boiling point ]
480 °C
| [density ]
1.286 | [vapor pressure ]
9.59 x 10-11 mmHg at 25 °C (extrapolated from vapor pressures determined at higher temperatures, Puppet al., 1974) | [refractive index ]
1.8390 (estimate) | [Fp ]
100 °C | [storage temp. ]
APPROX 4°C
| [solubility ]
95% ethanol: <1mg/mL at 20°C | [form ]
neat | [pka]
>15 (Christensen et al., 1975) | [color ]
Pale yellow needles | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents. | [Water Solubility ]
1.09 μg/L at 25 °C (de Maagd et al., 1998) | [BRN ]
1873745 | [Henry's Law Constant]
2.17, 4.24, 10.56, 13.62, 19.54, and 39.77 at 10.0, 20.0, 35.0, 40.1, 45.0, and 55.0 °C, respectively
(wetted-wall column, ten Hulscher et al., 1992) | [CAS DataBase Reference]
207-08-9(CAS DataBase Reference) | [IARC]
2B (Vol. 92) 2010 | [EPA Substance Registry System]
Benzo[k]fluoranthene (207-08-9) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N,Xn,F | [Risk Statements ]
R45:May cause cancer.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R40:Limited evidence of a carcinogenic effect.
R67:Vapors may cause drowsiness and dizziness.
R65:Harmful: May cause lung damage if swallowed.
R38:Irritating to the skin.
R11:Highly Flammable.
R66:Repeated exposure may cause skin dryness or cracking.
R36:Irritating to the eyes. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [RIDADR ]
UN 2811 6.1/PG 3
| [WGK Germany ]
3
| [RTECS ]
DF6350000
| [HazardClass ]
6.1(b) | [PackingGroup ]
III | [HS Code ]
29029000 | [Hazardous Substances Data]
207-08-9(Hazardous Substances Data) | [Toxicity]
LC50 (21-d) for Folsomia fimetaria >560 mg/kg (Sverdrup et al., 2002). |
| Hazard Information | Back Directory | [General Description]
Pale yellow needles or yellow crystalline solid. | [Reactivity Profile]
BENZO[K]FLUORANTHENE can react with strong oxidizing agents. May react with electrophiles, peroxides, nitrogen oxides and sulfur oxides | [Air & Water Reactions]
Insoluble in water. | [Hazard]
Possible carcinogen. | [Health Hazard]
ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits acrid smoke and irritating fumes. | [Fire Hazard]
Flash point data for this chemical are not available; however, BENZO(K)FLUORANTHENE(207-08-9) is probably combustible. | [Chemical Properties]
yellow crystals | [Uses]
Benzo[k]fluoranthene is used as an optical sensor for nitro-aromatic compounds due to fluorescence quenching of the molecule. It is also a carcinogen and mutagen. | [Definition]
ChEBI: Benzo[k]fluoranthene is a member of naphthalenes. | [Safety Profile]
Confirmed carcinogen withexperimental tumorigenic data. Mutation data reported.When heated to decomposition it emits acrid smoke andirritating fumes. | [Carcinogenicity]
Benzo[k]fluoranthenewastested
for carcinogenicity by dermal application in mice in one
study, intraperitoneal injection into newborn mice
in one study, and intrapulmonary implantation into
rats in one study. Benzo[k]fluoranthene exhibited a
significant carcinogenic activity in the dermal and intrapulmonary
assays. | [Source]
Benzo[b]fluoranthene and benzo[k]fluoranthene were detected in 8 diesel fuels at
concentrations ranging from 0.0027 to 3.1 mg/L with a mean value of 0.266 mg/L (Westerholm
and Li, 1994). Also present in gasoline (9 μg/L), bitumen (34–1,140 μg/L), crude oil (<1 ppm)
(quoted, Verschueren, 1983), and coal (32.5 g/kg) (Lao et al., 1975).
Based on laboratory analysis of 7 coal tar samples, benzo[k]fluoranthene concentrations ranged
from 350 to 3,000 ppm (EPRI, 1990). Identified in high-temperature coal tar pitches used in
roofing operations at concentrations ranging from 1,670 to 4,500 mg/kg (Malaiyandi et al., 1982).
Nine commercially available creosote samples contained benzo[k]fluoranthene at concentrations
ranging from 2 to 67 mg/kg (Kohler et al., 2000).
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 particle-phase
emission rates of benzo[k]fluoranthene were 0.671 mg/kg of pine burned, 0.303 mg/kg of oak
burned, and 0.286 mg/kg of eucalyptus burned.
California Phase II reformulated gasoline contained benzo[k]fluoranthene at a concentration of
280 μg/kg. Particle-phase tailpipe emission rate from a noncatalyst-equipped gasoline-powered
automobile was 32.7 μg/km (Schauer et al., 2002).
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 benzo[k]fluoranthene emitted ranged from 0 ng/kg at three temperatures (650, 750, and
950 °C) to 180.5 ng/kg at 850 °C. The greatest amount of PAHs emitted were observed at 750 °C
(Mastral et al., 1999). | [Environmental Fate]
Soil. Based on aerobic soil die-away test data, the half-life in soil ranged from 910 d to 5.86 yr
(Bossert et al., 1984).
Photolytic. The atmospheric half-life was estimated to range from 1.1 to 11 h (Atkinson, 1987).
Chemical/Physical. Benzo[k]fluoranthene will not hydrolyze because it has no hydrolyzable
functional group (Kollig, 1995). |
| Questions And Answer | Back Directory | [Description]
Benzo(k)fluoranthene is primarily found in gasoline exhaust, cigarette smoke, coal tar, coal and oil combustion emissions, lubricating oils, used motor oils and crude oils. Synonyms for benzo(k)fluoranthene (BkF) include 8,9-benzfluoranthene, 8,9-benzofluoranthene, 1 1.12-benzofiuoranthene, 2,3,1,8-binaphthylene and dibenzo(bjk)fluorene. Its molecular weight is 252.32 and molecular formula C20H12. It is characterized by four benzene rings in various configurations containing only carbon and hydrogen atoms. It was absorbed through the skin, lungs, and gastrointestinal tract. In industrial processes it is considered to be environmental pollutants. | [Clinical Trial]
B(k)F is a weak carcinogen in mice and is also a weak tumor initiator. It is very much weaker than benzo(a)pyrene (BP). The observations regarding systemic tumors following topical application of these carcinogens to mice is of great importance. All too frequently, a dermal carcinogenicity study concentrates on skin tumors and no others. Thus, it is relatively unusual to have systemic tumors investigated. The fact that there was no difference in the level of systemic tumors in all groups, including the potent mouse carcinogen BP, would indicate that the level of systemic absorption through the skin was not significant.
| [Health Toxicity]
B(k)F could penetrate the skin of some animals, especially mice, and remain present for a number of hours. The metabolism of B(k)F appears to follow a route leading to the predominant formation of its 5-hydroxy derivative. The further metabolism of this phenolic dihydrodiol to 5,9,10,trihydroxy-l1, 12-epoxy-9,10,11,12-tetrahydro- benzo(k)fluoranthene has been linked to the genotoxic effect of B(k)F in mouse skin. Care was taken to avoid contact with the head, axillae, and genital areas.
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