Name | Chrysene |
Synonyms | Chrycene Chrysene NSC 6175 [4]Phenacene Chrysene (purity) Chrysene Standard Chrysene in Methanol coaltarpitchvolatiles 1,2-benzophenanthrene DI-POT.HYDROGEN PHOSPHATE 3-HYDRATE |
CAS | 218-01-9 |
EINECS | 205-923-4 |
InChI | InChI=1/C18H12/c1-3-7-15-13(5-1)9-11-18-16-8-4-2-6-14(16)10-12-17(15)18/h1-12H |
InChIKey | WDECIBYCCFPHNR-UHFFFAOYSA-N |
Molecular Formula | C18H12 |
Molar Mass | 228.29 |
Density | 1.274 |
Melting Point | 252-254 °C (lit.) |
Boling Point | 448 °C (lit.) |
Flash Point | -17℃ |
Water Solubility | insoluble |
Vapor Presure | 4.3 at 25 °C (de Kruif, 1980) |
Appearance | Colorless to beige crystals or powders |
Color | White to Light yellow to Light orange |
Merck | 14,2255 |
BRN | 1909297 |
Storage Condition | Store below +30°C. |
Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
Refractive Index | 1.7480 (estimate) |
MDL | MFCD00003698 |
Physical and Chemical Properties | White or with silver-gray, yellow-green scaly or flat side eight-sided Crystal, forming a colorless orthorhombic plate crystal in benzene, with purple fluorescence under ultraviolet light. Flammable. Toxic. Easy sublimation in vacuum. The melting point is 255 ℃, the boiling point is 440.7 ℃, and the relative density is 1.274. Slightly soluble in alcohol, ether, carbon disulfide and glacial acetic acid, at 25 ℃, 1G can be dissolved in 1300ml of anhydrous ethanol, 480ml of toluene, at 100 ℃ in toluene dissolved about 5%, slightly soluble in boiling benzene, insoluble in water. |
Use | It is used as fluorescent agent for non-magnetic metal surface flaw detection, ultraviolet filter agent for chemical instruments, photosensitizer and photophotosensitizer, used in dye production, instead of washing oil as solvent and synergist for pesticide paspalum. |
Risk Codes | R45 - May cause cancer R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R68 - Possible risk of irreversible effects R40 - Limited evidence of a carcinogenic effect R67 - Vapors may cause drowsiness and dizziness R66 - Repeated exposure may cause skin dryness or cracking R36 - Irritating to the eyes R11 - Highly Flammable R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 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. S36/37 - Wear suitable protective clothing and gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S24/25 - Avoid contact with skin and eyes. S23 - Do not breathe vapour. |
UN IDs | UN 3077 9/PG 3 |
WGK Germany | 3 |
RTECS | GC0700000 |
HS Code | 29029090 |
Hazard Class | 9 |
Packing Group | III |
Toxicity | Acute LC50 for Neanthes arenaceodentata >50 μg/L (Rossi and Neff, 1978). |
White or with silver gray, yellow-green scaly or flat square eight-sided crystals, formed in benzene colorless orthorhombic platelets, under ultraviolet light with purple fluorescence. Flammable. Toxic. Easy sublimation in vacuum. Insoluble in water, slightly soluble in alcohol, ether, etc., soluble in hot benzene and hot toluene. The relative density was 1. 274. Melting point 255 °c. Boiling point 440.7 °c.
about 0. 65% in high temperature tar. Prepared by distillation.
A fluorescent agent for surface inspection of a non-magnetic metal material. Chemical instrument UV filter, photosensitizer, photographic photosensitizer, also used as a raw material for synthetic dyes, instead of washing oil as pesticide solvent and synergist.
Henry's Law Constant | 1.97, 6.91, 18.8, 52.3, and 118 at 4.1, 11.0, 18.0, 25.0, and 31.0 °C, respectively (Bamford et al.,1998) |
(IARC) carcinogen classification | 2B (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) |
biological activity | Chrysene is a high molecular weight (HMW) polycyclic aromatic hydrocarbon (PAH), which has strong stubbornness and carcinogenicity. |
use | used as fluorescent agent for non-magnetic metal surface flaw detection, ultraviolet filter agent for chemical instruments, photosensitizer and photo sensitizer, used in dye production, instead of washing oil as solvent and synergist for pesticide paspalum. Occurs in coal tar. Is formed during distillation of coal, in very small amount during distillation or pyrolysis of many fats and oils. Chrysene is one of the basic polycyclic aromatic hydrocarbon (PA H) which is toxic environmental pollutant and consistently exposed to sunlight. However, little information is available on its photogenotoxicity. The objective of the present study was to analyze th e effects of Chrysene, under environmental intensity of UVB (0.6 mW/cm2) in human skin epidermal cell line (HaCaT). |
production method | extracted from coal char or warm asphalt distillation. Distillate the bituminous distillate, mix with the mixed solvent of benzene and trimethylbenzene in a ratio of 1:0.5 or 1:1, and extract at a temperature of 110-130 ℃ for 3h, and stir during extraction. After about 20h of precipitation, the crystallization is separated by vacuum suction filtration and dried to obtain industry. Recrystallized twice with 1:1 washing oil, and the obtained crude product was dissolved in washing oil in the presence of 2%-5% maleic anhydride and heated to 125-135 ℃. Then crystallization is carried out at 20-25 ℃, separated by centrifuge, washed and dried with benzene to obtain a product with a purity of 85%-90%. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |