9-Fluorenone , 486-25-9

Synonym(s):
9-Fluorenone

CAS NO.：486-25-9

Empirical Formula: C13H8O

Molecular Weight: 180.2

MDL number: MFCD00001141

EINECS: 207-630-7

PRODUCT Properties

• Melting point: 80-83 °C (lit.)
• Boiling point: 342 °C (lit.)
• Density: 0,9 g/cm³
• vapor pressure: 0.005-0.2Pa at 20-50℃
• refractive index: 1.6309 (estimate)
• Flash point: 163 °C
• storage temp.: Store below +30°C.
• solubility: DMSO (Slightly), Methanol (Slightly)
• form: Crystalline Powder or Flakes
• color: Yellow
• Water Solubility: insoluble
• BRN: 1636531
• Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
• InChIKey: YLQWCDOCJODRMT-UHFFFAOYSA-N
• LogP: 3.25 at 25℃ and pH7.7
• CAS DataBase Reference: 486-25-9(CAS DataBase Reference)
• NIST Chemistry Reference: 9H-Fluoren-9-one(486-25-9)
• EPA Substance Registry System: 9-Fluorenone (486-25-9)

Description and Uses

9-fluorenone is an important intermediate for organic synthesis. It can be used to manufacture a variety of fine chemicals, mainly used as a modifier for the production of polymer materials, bisphenol fluorene, fluorenyl benzoxazine resin, acrylic resin, polyester, polycarbonate and epoxy resin. In the laboratory, fluorene was used as the raw material, dimethyl sulfoxide as the solvent, sodium hydroxide as the catalyst and oxygen as the oxidant. The oxidizing reaction was carried out by a tower packing reactor. The reaction solution was cooled and filtered to obtain a crude fluorenone. The content of crude fluorenone is 93%. We can recover 94% of the solvent and part of the crude fluorenone through distillation of the filtrate. The crude fluorenone is purified by directional crystallization to obtain yellow flaky fluorenone that have a purity of 99.8% or more.

9-Fluorenone is used in the preparation of antimalarial drugs. It is a fluorene derivative. Further, it is used in functional polymer and in dyes.

Safety

• Symbol(GHS): GHS07,GHS09
• Signal word: Warning
• Hazard statements: H319-H411
• Precautionary statements: P273-P305+P351+P338
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 24/25-36/37/39-27-26
• WGK Germany: 3
• RTECS: LL8925000
• Autoignition Temperature: 608 °C
• Hazard Note: Irritant
• TSCA: Yes
• HS Code: 29143900
• Hazardous Substances Data: 486-25-9(Hazardous Substances Data)
• Toxicity: LD50 orally in Rabbit: > 3900 mg/kg