成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> CAS DataBase List >>Fluorene

Fluorene

CAS No.
86-73-7
Chemical Name:
Fluorene
Synonyms
9H-FLUORENE;FLUOCINONIDE;Fluorene 98%;DIPHENYLENEMETHANE;uorene;FLUORENE;NSC 6787;Fluorene>Fluorene,98%;2,3-BENZINDENE
CBNumber:
CB3717011
Molecular Formula:
C13H10
Molecular Weight:
166.22
MDL Number:
MFCD00001111
MOL File:
86-73-7.mol
MSDS File:
SDS
Last updated:2024-08-21 22:41:43

Fluorene Properties

Melting point 111-114 °C (lit.)
Boiling point 298 °C (lit.)
Density 1.2
vapor pressure 13 hPa (146 °C)
refractive index 1.6470
Flash point 151 °C
storage temp. room temp
solubility 0.002g/l insoluble
form Crystalline Powder
pka >15 (Christensen et al., 1975)
color Almost white to light brown
Water Solubility insoluble
Merck 14,4155
BRN 1363491
Henry's Law Constant 1.89(x 10-5 atm?m3/mol) at 4 °C, 12.5 at 25 °C (dynamic equilibrium method, Bamford et al., 1999)
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey NIHNNTQXNPWCJQ-UHFFFAOYSA-N
LogP 4.164
CAS DataBase Reference 86-73-7(CAS DataBase Reference)
EWG's Food Scores 2
FDA UNII 3Q2UY0968A
IARC 3 (Vol. Sup 7, 92) 2010
NIST Chemistry Reference Fluorene(86-73-7)
EPA Substance Registry System Fluorene (86-73-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS09
Signal word  Warning
Hazard statements  H410
Precautionary statements  P273-P391-P501
Hazard Codes  N,T,F,Xn,Xi
Risk Statements  50/53-39/23/24/25-23/24/25-11-67-65-38-36/38-36/37/38-52/53-20
Safety Statements  60-61-24/25-45-36/37-16-7-62-33-24-22-36/37/39-27-26-25-9
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  LL5670000
Hazard Note  Harmful
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29029080
Toxicity Drinking water standard: No MCLGs or MCLs have been proposed, however, a DWEL of 1 mg/L was recommended (U.S. EPA, 2000).
NFPA 704
1
0 0

Fluorene price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 128333 Fluorene 98% 86-73-7 5g $41.8 2024-03-01 Buy
Sigma-Aldrich 48568 Fluorene analytical standard 86-73-7 5000mg $74.9 2024-03-01 Buy
Sigma-Aldrich 128333 Fluorene 98% 86-73-7 100g $92.7 2024-03-01 Buy
Sigma-Aldrich 8.20572 Fluorene for synthesis 86-73-7 100g $97 2022-05-15 Buy
Sigma-Aldrich 8.20572 Fluorene for synthesis 86-73-7 820572 $1877 2022-05-15 Buy
Product number Packaging Price Buy
128333 5g $41.8 Buy
48568 5000mg $74.9 Buy
128333 100g $92.7 Buy
8.20572 100g $97 Buy
8.20572 820572 $1877 Buy

Fluorene Chemical Properties,Uses,Production

Description

Fluorene, when pure, is found as dazzlingwhite flakes or small, crystalline plates. It is fluorescentwhen impure. Polynuclear aromatic hydrocarbons (PAHs)are compounds containing multiple benzene rings and arealso called polycyclic aromatic hydrocarbons. Molecularweight=166.23; Boiling point=293C (decomposes);Freezing/Melting point=116-117C; Flash point=151C. Hazard Identification (based on NFPA-704 MRating System): Health 1, Flammability 1, Reactivity 0.Insoluble in water.

Chemical Properties

white crystals

Chemical Properties

Fluorene, when pure, is found as dazzling white flakes or small, crystalline plates. It is fluorescent when impure. Polycyclic aromatic hydrocarbons (PAHs) are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons.

Physical properties

Small white leaflets or crystalline flakes from ethanol. Fluorescent when impure.

Uses

Fluorene was used study the extraction of specific, semiconducting single-wall carbon nanotubes (SWCNTs).

Uses

Polycyclic aromatic hydrocarbons as micropollutants.

Definition

ChEBI: An ortho-fused tricyclic hydrocarbon that is a major component of fossil fuels and their derivatives

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 2656, 1951 DOI: 10.1021/ja01150a069
Synthetic Communications, 26, p. 1467, 1996 DOI: 10.1080/00397919608003512
The Journal of Organic Chemistry, 37, p. 1273, 1972 DOI: 10.1021/jo00973a049

General Description

White leaflets. Sublimes easily under a vacuum. Fluorescent when impure.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

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

Hazard

Questionable carcinogen.

Health Hazard

ACUTE/CHRONIC HAZARDS: Fire hazards: Slight, when exposed to heat or flame.

Health Hazard

Acute toxicity in animals is very low. AnLD50 (intraperitoneal) in mice is 2000 mg/kg.Carcinogenicity of this compound in animalsis not well established. It tested negative in ahistidine reversion–Ames test.

Potential Exposure

Fluorene is used in resins, dyes, and is a chemical intermediate.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

Source

Fluorene was detected in groundwater beneath a former coal gasification plant in Seattle, WA at a concentration of 140 μg/L (ASTR, 1995). Present in diesel fuel and corresponding aqueous phase (distilled water) at concentrations of 350 to 900 mg/L and 12 to 26 g/L, respectively (Lee et al., 1992). Schauer et al. (1999) reported fluorene in diesel fuel at a concentration of 52 g/g and in a diesel-powered medium-duty truck exhaust at an emission rate of 34.6 g/km. Diesel fuel obtained from a service station in Schlieren, Switzerland contained fluorene at an estimated concentration of 170 mg/L (Schluep et al., 2001).
Based on laboratory analysis of 7 coal tar samples, fluorene concentrations ranged from 1,100 to 12,000 ppm (EPRI, 1990). Lao et al. (1975) reported a fluorene concentration of 27.39 g/kg in a coal tar sample. Detected in 1-yr aged coal tar film and bulk coal tar at an identical concentration of 4,400 mg/kg (Nelson et al., 1996). A high-temperature coal tar contained fluorene at an average concentration of 0.64 wt % (McNeil, 1983). Identified in high-temperature coal tar pitches at concentrations ranging from 800 to 4,000 mg/kg (Arrendale and Rogers, 1981). Lee et al. (1992a) equilibrated 8 coal tars with distilled water at 25 °C. The maximum concentration of fluorene observed in the aqueous phase was 0.3 mg/L.
Fluorene was detected in asphalt fumes at an average concentration of 34.95 ng/m3 (Wang et al., 2001).
Nine commercially available creosote samples contained fluorene at concentrations ranging from 19,000 to 73,000 mg/kg (Kohler et al., 2000).
Thomas and Delfino (1991) equilibrated contaminant-free groundwater collected from Gainesville, FL with individual fractions of three individual petroleum products at 24–25 °C for 24 h. The aqueous phase was analyzed for organic compounds via U.S. EPA approved test method 625. Average fluorene concentrations reported in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were 1, 3, and 10 μg/L, respectively.
Fluorene was detected in soot generated from underventilated combustion of natural gas doped with toluene (3 mole %) (Tolocka and Miller, 1995).
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 fluorene were 4.44 mg/kg of pine burned, 3.83 mg/kg of oak burned, and 2.613 mg/kg of eucalyptus burned.
California Phase II reformulated gasoline contained fluorene at a concentration of 4.35 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 9.72 and 358 μg/km, respectively (Schauer et al., 2002).
Under atmospheric conditions, a low rank coal (0.5–1 mm particle size) from Spain was burned in a fluidized bed reactor at seven different temperatures (50 °C increments), beginning at 650 °C. The combustion experiment was also conducted at different amounts of excess oxygen (5 to 40%) and different flow rates (700 to 1,100 L/h). At 20% excess oxygen and a flow rate of 860 L/h, the amount of fluorine emitted ranged from 850.7 ng/kg at 950 °C to 3,632.8 ng/kg at 750 °C. The greatest amount of PAHs emitted were observed at 750 °C (Mastral et al., 1999).
In one study, fluorene comprised about 7.6% of polyaromatic hydrocarbons in creosote (Grifoll et al., 1995).
Identified as an impurity in commcerially available acenaphthene (Marciniak, 2002).
Typical concentration of fluorene in a heavy pyrolysis oil is 1.6 wt % (Chevron Phillips, May 2003).

Environmental Fate

Biological. Fluorene was statically incubated in the dark at 25 °C with yeast extract and settled domestic wastewater inoculum. Significant biodegradation with gradual adaptation was observed. At concentrations of 5 and 10 mg/L, biodegradation yields at the end of 4 wk of incubation were 77 and 45%, respectively (Tabak et al., 1981).
Photolytic. Fluorene reacts with photochemically produced OH radicals in the atmosphere. The atmospheric half-life was estimated to range from 6.81 to 68.1 h (Atkinson, 1987). Behymer and Hites (1985) determined the effect of different substrates on the rate of photooxidation of fluorene (25 μg/g substrate) using a rotary photoreactor. The photolytic half-lives of fluorene using silica gel, alumina, and fly ash were 110, 62, and 37 h, respectively. Gas-phase reaction rate constants for OH radicals, NO3 radicals, and ozone at 24 °C were 1.6 x 10-11, 3.5 x 10-15, and <2 x 10-19 in cm3/molecule?sec, respectively (Kwok et al., 1997).
Chemical/Physical. Oxidation by ozone to fluorenone has been reported (Nikolaou, 1984). Chlorination of fluorene in polluted humus poor lake water gave a chlorinated derivative tentatively identified as 2-chlorofluorene (Johnsen et al., 1989). This compound was also identified as a chlorination product of fluorene at low pH (<4) (Oyler et al., 1983). It was suggested that the chlorination of fluorene in tap water accounted for the presence of chlorofluorene (Shiraishi et al., 1985).

storage

Color Code—Green: General storage may be used.Prior to working with this chemical you should be trainedon its proper handling and storage. Store in tightly closedcontainers in a cool, well-ventilated area away from oxidizers and source of ignition.

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous haz ardous material, Technical Name Required.

Purification Methods

Purify fluorene by chromatography of CCl4 or pet ether (b 40-60o) solution on alumina, with *benzene as eluent. Crystallise it from 95% EtOH, 90% acetic acid and again from EtOH. Crystallisation using glacial acetic acid retains an impurity which is removed by partial mercuration and precipitation with LiBr [Brown et al. J Am Chem Soc 84 1229 1962]. It has also been crystallised from hexane, or *benzene/EtOH, distilled under vacuum and purified by zone refining. [Gorman et al. J Am Chem Soc 107 4404 1985, Beilstein 5 IV 2142.]

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explo sions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Compound can react exo thermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel Crafts reaction.

Waste Disposal

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately when there is a release of this designated hazardous substance, in an amount equal to or greater than its RQ listed above. The toll free number of the NRC is (800) 424-8802; In the Washington D.C. metro politan area call (202) 426-2675. The rule for determining when notification is required is stated in 40 CFR 302.4 (Section IV. D.3.b).

2038-91-7
86-73-7
Synthesis of Fluorene from 3-Bromo-9H-fluorene
Global( 467)Suppliers
Supplier Tel Email Country ProdList Advantage
Mascot I.E.Co .,Ltd.
+86-0519-85010339 +8613584504415 info@mascotchem.com China 327 58
Jiangsu Guotai Guomian Trading Co. Ltd.
+86-512-58916079 +86-13601562190 pharmachem@gtgmt.com China 148 58
Hebei Mojin Biotechnology Co., Ltd
+86 13288715578 +8613288715578 sales@hbmojin.com China 12795 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177 peter@yan-xi.com China 5858 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325 sales1@chuanghaibio.com China 5893 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651 admin@zlchemi.com China 3002 58
Hebei Shengyang Water Conservancy Engineering Co., Ltd.
+8615373025980 clara@hbshengyang.com China 874 58
Springchem New Material Technology Co.,Limited
+86-021-62885108 +8613917661608 info@spring-chem.com China 2068 57
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806 sales@capot.com China 29791 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21639 55

View Lastest Price from Fluorene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Fluorene pictures 2024-10-29 Fluorene
86-73-7
US $10.00 / kg 1kg 99% 20ton Hebei Zhuanglai Chemical Trading Co.,Ltd
Fluorene pictures 2024-10-25 Fluorene
86-73-7
US $20.00-1.00 / kg 1kg 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
Fluorene pictures 2024-10-17 Fluorene
86-73-7
US $0.00 / KG 1KG 99% 500000kg Hebei Weibang Biotechnology Co., Ltd
  • Fluorene pictures
  • Fluorene
    86-73-7
  • US $10.00 / kg
  • 99%
  • Hebei Zhuanglai Chemical Trading Co.,Ltd
  • Fluorene pictures
  • Fluorene
    86-73-7
  • US $20.00-1.00 / kg
  • 0.99
  • Hebei Yanxi Chemical Co., Ltd.
  • Fluorene pictures
  • Fluorene
    86-73-7
  • US $0.00 / KG
  • 99%
  • Hebei Weibang Biotechnology Co., Ltd
Industrial fluorene Fluorene≥ 99% (HPLC) O-BIPHENYLENEMETHANE alpha-diphenylenemethane FLUORENE,REAGENT 2,2’-Methylemebiphemyl METHYLENEBIPHENYL Fluorene Zone Refined (number of passes:70) Fluorene,90%,tech. 2,2'-Methylenebiphenyl 2,3-Benzindene Fluorene 1g [86-73-7] 2,3-Benzoindene diphenylene-methan Methane, diphenylene- o-Biphenylmethane 2,3-BENZINDENE 2,2'-METHYLENEBIPHENYL 2,2-METHYLENEBIPHENYL FLUORENE alpha-diphenylenemethane-9h-fluorene AKOS BBS-00004408 2,2'-Methylenebiphenyl, 2,3-Benzindene, Diphenylenemethane FLUORENE, 5000MG, NEAT FLUORENE, 1X1ML, MEOH, 5000UG/ML FLUORENE ZONE-REFINED 99% FLUORENE, 1X1ML, MEOH, 200UG/ML Fluorene,98% fluorene solution 9H-Fluorene 98% Fluorene Zone Refined Fluorene, 98% 100GR Fluorene, 98% 25GR Fluorene, 98% 500GR NSC 6787 Fluorene Standard uorene FluoreneSolution,1000mg/L,1ml FluoreneSolution,500mg/L,1ml FluoreneSolution,100mg/L,1ml FluoreneZoneRefined(numberofpasses:70)> FluoreneSolution,2000mg/L,1ml FluoreneSolution,50mg/L,1ml Fluorene 200 μg/mL In Isooctane Fluorene> Fluorene 98% FLUOCINONIDE DIPHENYLENEMETHANE 9H-FLUORENE Fluorene (8CI) Fluorene 10 μg/ml Cyclohexane Fluorene 100 μg/ml Acetonitrile Fluorene 100 μg/ml Cyclohexane L20800000ALFluorenE10μg/mLin Acetonitrile L20800000CY FluorenE10μg/mLin Cyclohexane XA20800000ALFluorenE100μg/mLin Acetonitrile Fluorene in Methanol 86-73-7 86737