| Identification | More | [Name]
ACENAPHTHYLENE | [CAS]
208-96-8 | [Synonyms]
ACENAPHTHALENE
ACENAPHTHYLENE
acenaphthylene,industrial
cyclopenta(de)naphthalene
Cyclopenta[de]naphthalene
ACENAPHTHYLENE, 99+%
ACENAPHTHYLENE, 100MG, NEAT
ACENAPHTHYLENE, 1X1ML, MEOH, 5000UG/ML
ACENAPHTHYLENE 80+%
ACENAPHTHYLENE 95%
Acenaphthylene, tech., 80%
acenaphthylene solution
Acenaphthylene, 80%,tech | [EINECS(EC#)]
205-917-1 | [Molecular Formula]
C12H8 | [MDL Number]
MFCD00003806 | [Molecular Weight]
152.19 | [MOL File]
208-96-8.mol |
| Chemical Properties | Back Directory | [Description]
Acenaphthylene is a PAH with three aromatic rings. It is an intermediate chemical for
the manufacture of dyes, soaps, pigments, pharmaceuticals, insecticides, fungicides,
herbicides, plant growth hormones, naphthalic acids, naphthalic anhydride (pigments),
and acenaphthylene (resins) and is used to manufacture plastics. The largest emissions
of PAHs result from incomplete combustion of organic materials during industrial
processes and other human activities. These include (1) processing of coal, crude
oil, and natural gas, including coking, coal conversion, and petroleum refining; (2)
production of carbon blacks, creosote, coal tar, and bitumen; (3) aluminium, iron, and
steel production in plants and foundries; (4) heating in power plants and residences
and cooking; (5) combustion of refuse; (6) motor vehicle traffic; and (7) environmental
tobacco smoke. | [Appearance]
yellow crystalline powder | [Melting point ]
78-82 °C(lit.)
| [Boiling point ]
280 °C(lit.)
| [density ]
0.899 g/mL at 25 °C(lit.)
| [vapor pressure ]
6.68 at 25 °C (gas saturation-HPLC/UV spectrophotometry, Sonnefeld et al., 1983) | [refractive index ]
1.6360 (estimate) | [Fp ]
122°C | [storage temp. ]
APPROX 4°C
| [solubility ]
Soluble in ethanol, ether, and benzene (U.S. EPA, 1985) | [form ]
neat | [color ]
Yellow | [Specific Gravity]
0.899 | [Stability:]
Stable. Incompatible with oxidizing agents. | [Water Solubility ]
3.93mg/L(25 ºC) | [BRN ]
774092 | [Henry's Law Constant]
1.14 at 25 °C (gas stripping-UV spectrophotometry, Warner et al., 1987) | [InChIKey]
HXGDTGSAIMULJN-UHFFFAOYSA-N | [CAS DataBase Reference]
208-96-8(CAS DataBase Reference) | [EPA Substance Registry System]
Acenaphthylene (208-96-8) |
| Hazard Information | Back Directory | [Chemical Properties]
Acenaphthylene is a polycyclic aromatic hydrocarbon (PAH) with three aromatic rings. It is
used to manufacture plastics. Intermediate for dyes, soaps, pigments, pharmaceuticals, insec-
ticide, fungicide, herbicide, and plant growth hormones. Intermediate for naphthalic acids,
naphthalic anhydride (intermediate for pigments), and acenaphthylene (intermediate for res-
ins). The largest emissions of PAH result from incomplete combustion of organic materials
during industrial processes and other human activities. These include (a) processing of coal, crude oil, and natural gas, including coal; (b) coking, coal conversion, petroleum refi
ning, and
production of carbon blacks, creosote, coal-tar, and bitumen; (c) aluminium, iron, and steel
production in plants and foundries; (d) heating in power plants and residences and cooking;
(e) combustion of refuse; (f) motor vehicle traffi
c; and (g) environmental tobacco smoke. | [General Description]
Colorless crystalline solid. Insoluble in water. Used in dye synthesis, insecticides, fungicides, and in the manufacture of plastics. | [Reactivity Profile]
Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as ACENAPHTHYLENE(208-96-8), and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction. | [Air & Water Reactions]
Insoluble in water. | [Health Hazard]
Acenapht hylene is i rritat i ng to t he sk i n a nd mucous membra nes of rabbits. Subc h ron ic oral
doses of acenaphthylene caused adverse effects to the kidneys, liver, blood, reproductive
system, and lungs of experimental animals. Prolonged period of inhalation at low doses
caused pulmonary effects like bronchitis, pneumonia, and desquamation of the bronchial
and alveolar epithelium in rats. | [Potential Exposure]
PAHs are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons. Acenaphthylene is an aromatic hydrocarbon used in coal tar processing, as a dye intermediate; making insecticides, fungicides, plastics. | [First aid]
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. If this chemical contacts the skin, remove contaminated clothing, and wash with soap immediately. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make anunconscious person vomit. If this chemical has been inhaled, remove from exposure and transfer promptly to a medical facility.
| [Shipping]
UN3143 Dye intermediates, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous material, Hazard, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required. | [Incompatibilities]
Keep away from ozone and strong oxidizing agents. Incompatible with 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 | [Waste Disposal]
Consult 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. Product residues and sorbent media may be packaged in epoxy-lined drums, then destroyed by incineration, permanganate oxidation or microwave plasma treatment. The United States Environmental Protection Agency has investigated chemical precipitation for wastewater treatment | [Physical properties]
Colorless to white prisms or crystalline plates from alcohol with an odor similar to coal tar or
aromatic hydrocarbons. | [Uses]
Acenaphthylene has been used to investigate the photodimerization of acenaphthylene in micellar and hydrogel media. | [Uses]
Polycyclic aromatic hydrocarbons as carcinogenic | [Definition]
ChEBI: A ortho- and peri-fused tricyclic hydrocarbon that occurs in coal tar. | [Synthesis Reference(s)]
Journal of the American Chemical Society, 69, p. 1388, 1947 DOI: 10.1021/ja01198a044
The Journal of Organic Chemistry, 61, p. 324, 1996 DOI: 10.1021/jo951613a | [Safety Profile]
Moderately toxic by intraperitonealroute. Mutation data reported. When heated todecomposition it emits acrid smoke and irritating fumes. | [Source]
Detected in groundwater at a former coal gasification plant in Seattle, WA at concentrations
ranging from nondetect (method detection limit 5 μg/L) to 250 μg/L (ASTR, 1995). Based
on laboratory analysis of 7 coal tar samples, acenaphthylene concentrations ranged from 260 to
18,000 ppm (EPRI, 1990). Lee et al. (1992a) equilibrated 8 coal tars with distilled water at 25 °C.
The maximum concentration of acenaphthylene observed in the aqueous phase was 0.5 mg/L.
Acenaphthylene was detected in asphalt fumes at an average concentration of 6.93 ng/m3 (Wang
et al., 2001).
Detected in a distilled water-soluble fraction of used motor oil at concentrations ranging from
4.5 to 4.6 μg/L (Chen et al., 1994).
Acenaphthylene was detected in a diesel-powered medium duty truck exhaust at an emission
rate of 70.1 μg/km (Schauer et al., 1999). Acenaphthylene was also detected in soot generated
from underventilated combustion of natural gas doped with toluene (3 mole %) (Tolocka and
Miller, 1995).
Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without
catalytic converters were 37.0 and 2,180 μg/km, respectively (Schauer et al., 2002).
Nine commercially available creosote samples contained acenaphthylene at concentrations
ranging from 7 to 3,700 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 gas-phase emission
rates of acenaphthylene were 18.6 mg/kg of pine burned, 10.8 mg/kg of oak burned, and 9.99
mg/kg of eucalyptus burned. | [Environmental Fate]
Biological. When acenaphthylene was statically incubated in the dark at 25 °C with yeast
extract and settled domestic wastewater inoculum, significant biodegradation with rapid
adaptation was observed. At concentrations of 5 and 10 mg/L, 100 and 94% biodegradation,
respectively, were observed after 7 d (Tabak et al., 1981). A Beijerinckia sp. and a mutant strain
were able to cooxidize acenaphthylene to the following metabolites: acenaphthenequinone and a
compound tentatively identified as 1,2-dihydroxyacenaphthylene. When acenaphthylene was
incubated with a mutant strain (Beijerinckia sp. strain B8/36) one metabolite formed which was
tentatively identified as cis-1,2-acenaphthenediol (Schocken and Gibson, 1984). This compound
also formed when acenaphthylene was deoxygenated by a recombinant strain of Pseudomonas
aeruginosa PAO1(pRE695) (Selifonov et al., 1996).
Bossert and Bartha (1986) reported that acenaphthylene in a Nixon sandy loam soil (1
g/kg) completely disappeared in <4 months. They concluded volatilization was more important
than biodegradation in the disappearance of acenaphthylene from soil.
Ozonation in water at 60 °C produced 1,8-naphthalene dialdehyde, 1,8-
naphthalene anhydride, 1,2-epoxyacenaphthylene, 1-naphthoic acid, and 1,8-naphthaldehydic acid
(Calvert and Pitts, 1966). | [storage]
Store at -20°C | [Purification Methods]
Dissolve acenaphthylene in warm redistilled MeOH, filter through a sintered glass funnel and cool to -78o to precipitate the material as yellow plates [Dainton et al. Trans Faraday Soc 56 1784 1960]. Alternatively it can be sublimed in vacuo. [Beilstein 5 H 625, 5 IV 2138.] |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N,F,T | [Risk Statements ]
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R67:Vapors may cause drowsiness and dizziness.
R65:Harmful: May cause lung damage if swallowed.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R38:Irritating to the skin.
R11:Highly Flammable.
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S16:Keep away from sources of ignition-No smoking .
S7:Keep container tightly closed . | [RIDADR ]
UN 1145 3/PG 2 | [WGK Germany ]
3
| [RTECS ]
AB1254000
| [TSCA ]
Yes | [HS Code ]
29029090 | [Hazardous Substances Data]
208-96-8(Hazardous Substances Data) | [Toxicity]
LC50 (21-d) for Folsomia fimetaria 145 mg/kg (Sverdrup et al., 2002). |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Calcium oxide-->Potassium sulfate-->Polishing oil-->Acenaphthene-->Potassium chromate | [Preparation Products]
4-AMINO-1,8-NAPHTHALIMIDE-->1-ACETOXYACENAPHTHENE-->3,4,9,10-Perylenetetracarboxylic dianhydride-->2a,3,4,5-Tetrahydroacenaphthene-->3,9-perylenedicarboxylic acid-->DECACYCLENE-->1-Acenaphthenone-->1-ACENAPHTHENOL-->1-nitroacenaphthlene-->Acenaphthylene, 5-nitro--->Acenaphthylene, 1,2-dihydro-1,2-dimethoxy- |
|
|