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1,4-Difluorbenzol
P-DIFLUOROBENZENE · 48944 · p-DFB · 1,4-DifL · 1.4-Difluorobe · For fluorobenzene · p-difluoro-benzen · 4-Difluorobenzene
Identifikatoren & physikalische Daten
| CAS No. | 540-36-3 |
|---|---|
| Summenformel | C6H4F2 |
| Durchschnittliche Molmasse | 114,09 g/mol |
| Monoisotopische Masse | 114,02810657 g/mol |
| SMILES | Fc1ccc(F)cc1 |
| InChIKey | QUGUFLJIAFISSW-UHFFFAOYSA-N |
| PubChem CID | 10892 |
| ChEMBL | CHEMBL496192 |
| ChEBI | CHEBI:38585 |
| EC No. | 208-742-9 |
| DTXSID | DTXSID1075432 |
| Lokaler Name | 1,4-Difluorbenzol |
Chemische & physikalische Eigenschaften
| XLogP | 2,2 |
|---|---|
| Polarare Oberfläche (TPSA) | 0 |
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 8 |
| Formalladung | 0 |
| Komplexität | 54,9 |
| Stoffklassen | Other Classes -> Halogenated Monoaromatics |
| SpringerMaterials Properties | 13C nuclear magnetic resonance spectrum |
| LogP (Verteilungskoeffizient) | 2.26 |
| Physical Description | Liquid with a pungent aromatic odor[Merck Index] Colorless liquid[MSDSonline] |
| Schmelzpunkt | -13 °C (lit.) |
| Siedepunkt | 88-89 °C (lit.) |
| Dichte | 1.11 g/mL at 25 °C (lit.) |
| Brechungsindex | n20/D 1.441(lit.) |
| Flammpunkt | 36 °F |
| Lagerbedingungen | room temp |
| Löslichkeit | 1.2g/l |
| Aggregatzustand | Liquid |
| Farbe | Clear colorless to slightly yellow |
| Wichte | 1.110 |
| Spezifische Wärmekapazität | Cp(liquid): 1.38 J/(g·K), at 25℃ |
| Merck | 14,3148 |
| BRN | 1904541 |
| Henry-Konstante | 1.6×10-3 mol/(m3Pa) at 25℃, Hiatt (2013) |
| Dielektrizitätskonstante | 2.2599999999999998 |
| Hauptanwendungen | environmental |
| InChI | 1S/C6H4F2/c7-5-1-2-6(8)4-3-5/h1-4H |
| InChIKey | QUGUFLJIAFISSW-UHFFFAOYSA-N |
| SMILES | Fc1ccc(F)cc1 |
| CAS Datenbank | 540-36-3(CAS DataBase Reference) |
| NIST chemische Informationen | Benzene, 1,4-difluoro-(540-36-3) |
| EPA chemische Informationen | 1,4-Difluorobenzene (540-36-3) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 1.9% (1 of 53) of reports.DangerH224 (69.8%): Extremely flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P264+P265, P280, P303+P361+P353, P305+P351+P338, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 53 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Gefahrenübersicht | An irritant[MSDSonline] See p-Dichlorobenzene. |
| Hazard Classes and Categories | Flam. Liq. 1 (69.8%) |
| Unerwünschte Wirkungen | Neurotoxin - Other CNS neurotoxin |
| Toxicity Data | LC50 (mice) = 55,000 mg/m3/2h |
| Wassergefährdungsklasse (WGK) | 3 |
| UN-Transportnummer | UN 1993 3/PG 2 |
| Zollcode | 29036990 |
| RTECS-Nr. | CZ5658000 |
| R-Sätze (R) | 11-20-39/23/24/25-23/24/25 |
| Gefahrensymbole | F,Xn,T |
| hazard_note | Highly Flammable |
| Sicherheitshinweise (S) | 16-29-33-7-45-36/37-7/9 |
| Gefahrenklasse | 3Flam. Liq. 2 |
| Verpackungsgruppe | II |
| Lagerklasse | 3 - Flammable liquids |
Anwendungen & Verwendung
Verwenden
1,4-Difluorobenzene is used in method for production of prepolymers containing Polyoxymethylene block.