Acenaphthene
Acenaphthene
CAS: 83-32-9
Molecular Formula: C12H10
Acenaphthene - Names and Identifiers
Acenaphthene - Physico-chemical Properties
| Molecular Formula | C12H10 |
| Molar Mass | 154.21 |
| Density | 1.06 |
| Melting Point | 90-94°C(lit.) |
| Boling Point | 279°C(lit.) |
| Flash Point | 135 °C |
| Water Solubility | 0.000347 g/100 mL |
| Solubility | chloroform: 50mg/mL, clear |
| Vapor Presure | 10 mm Hg ( 131 °C) |
| Vapor Density | 5.32 (vs air) |
| Appearance | crystalline |
| Color | brown-beige |
| Merck | 14,28 |
| BRN | 386081 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.6048 |
| Physical and Chemical Properties | White needle-like crystals. |
| Use | Phosphonium (also known as naphthalene hexyl ring) is a condensed cyclic aromatic hydrocarbon, generally colorless crystals. Insoluble in water, soluble in alcohol. It is an important derivative of naphthalene. Generally extracted from coal tar, oxidation will be formed after 1,8-naphthalene dicarboxylic anhydride and naphthoquinone. |
Acenaphthene - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed R38 - Irritating to the skin R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R20 - Harmful by inhalation |
| Safety Description | 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. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S37/39 - Wear suitable gloves and eye/face protection S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S36 - Wear suitable protective clothing. S33 - Take precautionary measures against static discharges. S25 - Avoid contact with eyes. S9 - Keep container in a well-ventilated place. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | AB1000000 |
| TSCA | Yes |
| HS Code | 29029080 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: > 16000 mg/kg |
Acenaphthene - Preliminary Study on solubilization and application of surfactant for lutetium
from VIP
Author:
Chen Baoliang , Ma Shiyu , Zhu Li-Zhong
Abstract:
The solubilization effects of anionic, cationic, nonionic surfactants and anionic, cationic Nonionic mixed surfactants were studied comparatively. SDS ,CTMAB ,Triton x 1 0 0 can significantly increase the solubility in water, the distribution coefficient Kmn on Triton x 1 0 0 monomer is 1 3 0 × 1 0 3,0 92 × 1 0 3,1 3 0 × 1 0 3, the partition coefficients Kmc in the micellar phase are 5 6 4 × 1 0 3,1 5 0 × 1 0 4 ,5 5 7 × 1 0 3, respectively. The anionic Nonionic mixed surfactant and the cationic Nonionic mixed surfactant under certain conditions have synergistic solubilization effect, which is due to the increase of the micelle partition coefficient Kmc of the mixed surfactant. The effects of CTMA singlet state, micelle state and bentonite adsorption state on the distribution, And the size of the normalized distribution coefficient of organic matter on the surfactant monomer, micelle and soil, which provides a reference for the application of surfactants in the remediation of organic pollution
Key words:
surfactant co-solubilization remediation of soil organic pollution
DOI:
10.3321/j.issn:0254-6108.2003.01.010
cited:
year:
2003
Last Update：2024-01-02 23:10:35
Acenaphthene - Study on the performance and mechanism of anion-cation organobentonite for adsorption of lutetium in water
from VIP Journal Professional Edition
Author:
Abstract:
A series of organic bentonite with different proportions of dodecyl trimethyl ammonium bromide (DTMAB), sodium dodecyl sulfate (SDS) and sodium dodecyl benzene sulfonate (SDBS) were prepared, the properties and mechanism of adsorption of phosphonium from aqueous solution by organobentonite were studied. The results showed that the adsorptive capacity of anion-cation organobentonites was higher than that of mono-cation organobentonites, which was related to the type and concentration of anionic surfactants used in the modification; the adsorption isotherms of anion-cation organobentonites are linear, and the adsorption mechanism is mainly distribution.
Key words:
organobentonite mixed surfactant assignment role
DOI:
10.3969/j.issn.1001-3865.2005.04.004
cited:
year:
2005
Last Update：2023-08-16 22:08:29
Acenaphthene - Study on the determination of trace amounts of lutetium by β-cyclodextrin induced room temperature phosphorimetry using epoxybromopropane as a heavy atom perturbation agent
Author:
double sensitivity , Liu Changsong , Feng kecong , Zhang Suze
Abstract:
reports of heavy atom perturbators in cyclodextrin-induced room temperature phosphorimetry (CD-RTP) are limited to 1, 2-dibromoethane (DBE) and 1, 2-dibromopropane (DBP). In this paper, a new kind of perturbation agent-epoxybromopropane (EBH) was first found and applied to the determination of trace amounts of americium by β-CD-RTP method. The heavy atom effects of EBH and DBP are compared in detail. The results show that the properties of EBH and DBP are similar, and EBH is more tolerant than DBP in experimental conditions.
Key words:
cyclodextrin induced room temperature polarimetry epoxybromopropane ↑
DOI:
CNKI:SUN:FXHX.0.1991-11-009
cited:
year:
1991
Last Update：2023-08-16 22:08:29
Acenaphthene - Simultaneous determination of fluorene, lutetium, anthracene and perylene by derivative-constant energy synchronous fluorimetry
from VIP
Author:
Li Yao-Qun , How Often , Money side , Huang Xianzhi
Abstract:
Abstract:... full text
Key words:
DOI:
http://dspace.xmu.edu.cn:8080/dspace/handle/2288/55561
cited:
year:
1997
Last Update：2023-08-16 22:08:29
Acenaphthene - Study on extraction of high purity Xanthene from coal tar wash oil
from Wanfang
Author:
Wang Jun , Liu Wenbin , Snow Peak White , Wu Zhen
Abstract:
The vacuum distillation and solvent extraction methods were used to extract high purity ammonia from coal tar wash oil. When the pressure is 0.05~0.06 MPa, the reflux ratio is 10~20, the extraction temperature is 235~245 ℃, the fraction is recrystallized with anhydrous ethanol, the final product with a purity of more than 99% was obtained.Key words:
Coal Tar wash oil extract recrystallization
DOI:
CNKI:SUN:HXYZ.0.2005-02-007
cited:
year:
2005
Last Update：2023-08-16 22:08:29
Acenaphthene - Reference Information
| Henry's Law Constant | 3.47, 6.21, 10.8, 18.3, and 28.2 at 4.1, 11.0, 18.0, 25.0, and 31.0 °C, respectively (Bamford et al.,1998) |
| LogP | 4.04 at 30℃ and pH5-8 |
| (IARC) carcinogen classification | 3 (Vol. 92) 2010 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Introduction | Acenaphthene (also known as naphthyl ring) is a condensed cyclic aromatic hydrocarbon, generally colorless crystal. Insoluble in water, soluble in alcohol. It is an important derivative of naphthalene. Acenaphthene is generally extracted from coal tar, and 1, 8-naphthalene diformic anhydride and naphthoquinone will be formed after oxidation. |
| toxicity | 1. acute toxicity LD50:600 mg/kg (rat abdominal cavity). 2. mutagenic microorganisms mutagenic: Salmonella typhimurium 0.5nmol/dish (48h). Cytogenetic analysis: hamster lung 10mmol/L(6h). |
| use | is a raw material for the production of 1,8-naphthalene dimethyl anhydride, which can be dehydrogenated to prepare acenaphthene resin, can be used to make dyes, plant growth hormones, insecticides and other organic synthetic raw materials, and acenaphthene nitro can be prepared by nitrification; Further oxidation can produce 1,8-naphthalene dimethyl anhydride and quinone, it can be used for synthetic dyes, polyester resins, polyester fibers; it can also be used for making fluorescent pigments, medicines, pesticides, etc. Acenaphthene is dehydrogenated to obtain acenaphthene, which can make acenaphthene resin. It is used to produce 1.8-naphthalene diformic anhydride to make dyes; acenaphthene dilute resin can be prepared after dehydrogenation; it can produce plant growth hormone, insecticides, fungicides, etc. The raw material for producing 1.8-naphthalene diformic anhydride is used to make dyes, can be dehydrogenated to make acenaphthene dilute resin, and can make plant growth hormone insecticides and fungicides. Acenaphthene and picric acid form orange needle crystals (melting point 162 ℃). Birch reduction (Birch reduction) can occur to obtain 2a,3-acenaphthene (2a,3-acenaphthene). Acenaphthene (acenaphthylene) was obtained by dehydrogenation and oxidation with Pd/C. Oxidation with potassium permanganate to obtain 1, 8-naphthalene diformic anhydride. Electrophilic substitution reactions mainly occur in the 5-position, such as bromination, nitration, and alkylation. It reacts with N-bromosuccinimide (NBS) in carbon tetrachloride to obtain 1-bromine substituents. Existed in coal tar. Laboratory preparation with 1, 8-dibromomethylnaphthalene and phenyl lithium. for organic synthesis. This product is irritating. |
| production method | in high temperature tar, it contains about 1.2%-1.8% acenaphthene. The washing oil separated by coal tar distillation is divided into narrow fractions by rectification method, and industrial acenaphthene is produced from the 270-280 ℃ fraction. |
| category | more flammable solids |
| toxicity classification | poisoning |
| acute toxicity | abdominal cavity-rat LD50: 600 mg/kg |
| flammability hazard characteristics | flammable in case of open flame, high temperature and oxidant; Stimulating gas generated by heating |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from oxidant |
| fire extinguishing agent | water, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
| occupational standard | STEL 10 mg/m3 |
| spontaneous combustion temperature | >450°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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