132-64-9
Dibenzofuran
CAS: 132-64-9
Molecular Formula: C12H8O
132-64-9 - Names and Identifiers
| Name | Dibenzofuran |
| Synonyms | DBF DIBENZOFURON Dibenzofuran DIBENZOFURAN Dibenzofuran 1 DIPHENYLENE OXIDE DIBENZO[B,D]FURAN dibenzo[b,d]furan Diphenylene oxide Industry fluorene oxide Dibenzo[b,d]furan (purity) |
| CAS | 132-64-9 |
| EINECS | 205-071-3 |
| InChI | InChI=1/C12H8O/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8H |
| InChIKey | TXCDCPKCNAJMEE-UHFFFAOYSA-N |
132-64-9 - Physico-chemical Properties
| Molecular Formula | C12H8O |
| Molar Mass | 168.19 |
| Density | 1,3 g/cm3 |
| Melting Point | 80-82 °C (lit.) |
| Boling Point | 154-155 °C/20 mmHg (lit.) |
| Flash Point | 130 °C |
| Solubility | Insoluble in wate(<1 mg/mL). Soluble in nonpolar organic solvents. |
| Vapor Presure | 2.48 x 10-3 mmHg at 25 °C (Chirico et al., 1990) |
| Appearance | Bright yellow crystal |
| Color | White to Almost white |
| BRN | 121100 |
| Storage Condition | Store below +30°C. |
| Refractive Index | 1.6480 |
| MDL | MFCD00004968 |
| Physical and Chemical Properties | Light yellow crystal |
| Use | For the production of drugs for the treatment of liver flukes in cattle and sheep, the preparation of disinfectants, preservatives, dyes, synthetic resins and high temperature lubricants |
132-64-9 - Risk and Safety
| Risk Codes | R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R22 - Harmful if swallowed R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R63 - Possible risk of harm to the unborn child R43 - May cause sensitization by skin contact R36/37/38 - Irritating to eyes, respiratory system and skin. R45 - May cause cancer R67 - Vapors may cause drowsiness and dizziness R40 - Limited evidence of a carcinogenic effect |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S29 - Do not empty into drains. 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. S7/9 - S23 - Do not breathe vapour. S53 - Avoid exposure - obtain special instructions before use. |
| UN IDs | UN3077 |
| WGK Germany | 3 |
| RTECS | HP4430000 |
| TSCA | Yes |
| HS Code | 29329995 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | Heitmuller et al. (1981) reported a NOEC of 1.0 ppm. |
132-64-9 - Introduction
Water solubility <0.1g/100 mL (20 ℃). Insoluble in water, slightly soluble in benzene, ether and alcohol
Last Update：2022-10-16 17:13:23
132-64-9 - Reference Information
| Henry's Law Constant | 5.82 x 10-5 atm?m3/mol at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | dibenzofurans and their alkyl substituted series (DBFs) are similar to dibenzothiophene and dibenzopyrrole (carbazole) compounds because of their structure and properties, and are generally used to compare with carbazole for the study of reservoir filling pathway tracing. |
| application | dibenzofuran is an excellent high boiling point organic solvent, which can dissolve a variety of polymer compounds. it can also be used as raw materials for medicine, disinfectants, preservatives, fuels, synthetic resins and high-temperature lubricants. some derivatives of dibenzofuran have anti-inflammatory, analgesic, muscle relaxation and vasodilation activities. In addition, dibenzofuran can also form a eutectic mixture with biphenyl as a heat transfer solvent. |
| preparation | weigh a certain amount of activated carbon powder and obtain a catalyst carrier by pickling, alkali washing, oxidation treatment and anchoring treatment of sodium nitrite, which will be dried for later use. weigh 0.4422g of palladium chloride and 1.0239g of sodium nitrite with purity of 59.5%, fully dissolve them in 50mL of mixed solution of 1% dilute hydrochloric acid and methanol in a volume ratio of 1: 1, drop them into the aqueous solution of 3g catalyst carrier, impregnate them for 8h, add 10mL of 37% formaldehyde and 1mL of 80% hydrazine hydrate to reduce them at 50 ℃ for 6h, filter, wash, dry and cool them after cooling, A Pd/C catalyst with a load of 5% was obtained. 0.5 g5% Pd/C catalyst, 1.0g trioctyl methyl ammonium chloride, 5.0 g2,4, 8-trichlorodibenzofuran, 30mL toluene and 15% NaOH aqueous solution 25mL, hydrogen feeding rate 100 mL/min, normal pressure, reaction at 100 ℃ for 6.0h, and dibenzofuran was prepared by conventional separation. The conversion of 2,4, 8-trichlorodibenzofuran was 94.71% and the yield of dibenzofuran was 91.12%. |
| use | used in medicine, disinfectants, preservatives, dyes; Raw materials for synthetic resins and high-temperature lubricants used to produce drugs for treating cattle and sheep liver fluxes, disinfectants, preservatives, dyes, synthetic resins and high-temperature lubricants, etc. |
| 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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