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Chemical Name:
ACENAPHTHYLENE;ACENAPHTHALENE;ACENAPHTHYLENE 95%;Acenaphthylene >ACENAPHTHYLENE 80+%;ACENAPHTHYLENE, 99+%;acenaphthylene solution;Acenaphthylene Standard;Acenaphthylene, 80%,tech;acenaphthylene,industrial
Molecular Formula:
Formula Weight:
MOL File:


Melting point:
78-82 °C(lit.)
Boiling point:
280 °C(lit.)
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)
Flash point:
storage temp. 
room temp
Soluble in ethanol, ether, and benzene (U.S. EPA, 1985)
Specific Gravity
Water Solubility 
3.93mg/L(25 ºC)
Henry's Law Constant
1.14 at 25 °C (gas stripping-UV spectrophotometry, Warner et al., 1987)
Stable. Incompatible with oxidizing agents.
CAS DataBase Reference
208-96-8(CAS DataBase Reference)
EWG's Food Scores
EPA Substance Registry System
Acenaphthylene (208-96-8)
  • Risk and Safety Statements
Signal word  Warning
Hazard statements  H301-H302-H315-H319-H335-H372-H373
Precautionary statements  P301+P310a-P321-P405-P501a-P280-P301+P312+P330-P305+P351+P338-P337+P313-P260-P264-P270-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P314-P501
Hazard Codes  Xn,N,F,T,Xi
Risk Statements  22-36/37/38-67-65-50/53-38-11-39/23/24/25-23/24/25-20
Safety Statements  26-36/37/39-62-61-60-45-36/37-16-7-37/39-33-25-9
RIDADR  UN 1145 3/PG 2
WGK Germany  3
RTECS  AB1254000
HS Code  29029090
Toxicity LC50 (21-d) for Folsomia fimetaria 145 mg/kg (Sverdrup et al., 2002).

ACENAPHTHYLENE price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 48566 Acenaphthylene analytical standard 208-96-8 100 mg $68.6 2021-03-22 Buy
Sigma-Aldrich 416703 Acenaphthylene 99% 208-96-8 100mg $127 2020-08-18 Buy
Sigma-Aldrich 92549 Acenaphthylene certified reference material, TraceCERT 208-96-8 100mg $466 2021-03-22 Buy
TCI Chemical A0005 Acenaphthylene >94.0%(GC) 208-96-8 5g $32 2021-03-22 Buy
TCI Chemical A0005 Acenaphthylene >94.0%(GC) 208-96-8 25g $104 2021-03-22 Buy

ACENAPHTHYLENE Chemical Properties,Uses,Production


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.

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.

Chemical Properties

Acenaphthylene is a flaky yellow crystalline powder or solid.

Physical properties

Colorless to white prisms or crystalline plates from alcohol with an odor similar to coal tar or aromatic hydrocarbons.


Polycyclic aromatic hydrocarbons as carcinogenic


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

General Description

Colorless crystalline solid. Insoluble in water. Used in dye synthesis, insecticides, fungicides, and in the manufacture of plastics.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as ACENAPHTHYLENE, 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.

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.

Health Hazard

Carcinogenic properties of this compound inanimals or humans are not known. Toxicitydata are not available.

Safety Profile

Moderately toxic by intraperitonealroute. Mutation data reported. When heated todecomposition it emits acrid smoke and irritating fumes.

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.


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).


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.

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.]


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

ACENAPHTHYLENE Preparation Products And Raw materials

Raw materials

Preparation Products


Global( 211)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 CHINA 26734 60
AB PharmaTech,LLC
323-480-4688 United States 989 55
career henan chemical co
+86-371-86658258 CHINA 29961 58
Jinan Carbotang Biotech Co.,Ltd.
+86 15866703830 CHINA 2778 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282 China 5450 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23035 58
Chongqing Chemdad Co., Ltd
+86-13650506873 CHINA 37282 58
Alchem Pharmtech,Inc.
8485655694 United States 63726 58
Shaanxi Dideu Medichem Co. Ltd
029-88380327 CHINA 4149 58

View Lastest Price from ACENAPHTHYLENE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
US $1.00 / PCS 1KG 99% 10 mt Hebei Guanlang Biotechnology Co., Ltd.
2020-04-25 Acenaphthylene
US $1.00-1.00 / KG 1KG 99.0% 600 tons Shaanxi Dideu Medichem Co. Ltd
US $1.00 / kg 1kg 97% as request career henan chemical co


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