Fluorene
Chemical compound / From Wikipedia, the free encyclopedia
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Fluorene /ˈflʊəriːn/, or 9H-fluorene is an organic compound with the formula (C6H4)2CH2. It forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene. It has a violet fluorescence, hence its name. For commercial purposes it is obtained from coal tar.[3] It is insoluble in water and soluble in many organic solvents. Although sometimes classified as a polycyclic aromatic hydrocarbon, the five-membered ring has no aromatic properties.[citation needed] Fluorene is mildly acidic.
Quick Facts Names, Identifiers ...
Names | |
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Preferred IUPAC name
9H-Fluorene[2] | |
Systematic IUPAC name
Tricyclo[7.4.0.02,7]trideca-2,4,6,9,11,13-hexaene | |
Identifiers | |
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3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.001.541 |
EC Number |
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KEGG |
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PubChem CID |
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RTECS number |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C13H10 | |
Molar mass | 166.223 g·mol−1 |
Density | 1.202 g/mL |
Melting point | 116 to 117 °C (241 to 243 °F; 389 to 390 K) |
Boiling point | 295 °C (563 °F; 568 K) |
1.992 mg/L | |
Solubility | organic solvents |
log P | 4.18 |
Acidity (pKa) | 22.6 |
-110.5·10−6 cm3/mol | |
Hazards | |
NFPA 704 (fire diamond) | |
Flash point | 152 °C (306 °F; 425 K) |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
16000 mg/kg (oral, rat) |
Safety data sheet (SDS) | Sigma-Aldrich |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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