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Vinylidene fluoride
PVDF · POLY(VINYLIDENE FLUORIDE) · poly(1,1-difluoroethylene) · PVF2 · polyvinylidene difluoride · PolyvinylideneFluoride(Pvdf) · vinylidene fluoride homopolymer · Poly(vinylidene fluoride) average Mw ~180,000 by GPC, average Mn ~71,000, beads or pellets
Identifikatoren & physikalische Daten
| CAS No. | 24937-79-9 |
|---|---|
| Summenformel | C2H2F2 |
| Durchschnittliche Molmasse | 64,03 g/mol |
| Monoisotopische Masse | 64,0124565 g/mol |
| SMILES | C=C(F)F |
| InChIKey | BQCIDUSAKPWEOX-UHFFFAOYSA-N |
| PubChem CID | 6369 |
| ChEMBL | CHEMBL116020 |
| ChEBI | CHEBI:82550 |
| EC No. | 200-867-7 |
| DTXSID | DTXSID3021439 |
Chemische & physikalische Eigenschaften
| XLogP | 1,3 |
|---|---|
| Polarare Oberfläche (TPSA) | 0 |
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 2 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 4 |
| Formalladung | 0 |
| Komplexität | 27 |
| Stoffklassen | Flammable agents - 4th degree |
| PFAS | PFAS -> Other/unspecifiedPFAS -> PFAS identified in REACH Regulation EC No. 1272/2008 |
| Polymers | Plastics & Rubber -> Vinyl Halides |
| SpringerMaterials Properties | Coriolis coupling |
| LogP (Verteilungskoeffizient) | log Kow = 1.24 |
| Geruch | Nearly odorlessFaint, ethereal |
| Dichte | 0.617 at 75 °F (liquid) (NTP, 1992) - Less dense than waterwill float0.617 g/cc at 24 °C (liquid)Critical density = 417 kg/cu mHeat of formation = -345.2 kJ/mol at 25 °CHeat of polymerization = -474.21 kJ/mol at 25 °Cexplosive limits = 5.8-20.3 vol % in airRelative density (water = 1): 0.62.21(relative gas density)1.78 g/mL at 25 °C |
| Viscosity | 7.7574 pascal-seconds (liquid) at boiling point |
| Color/Form | Colorless gasColorless gas [Note: Shipped as a liquefied compressed gas]. |
| Löslichkeit | 0.018 g/100 g at 77 °F and 760 mmHg (NTP, 1992)Slightly sol in watersol in alcohol and etherWater solubility = 6.3 cu cm/100 g at 25 °C and 10 kPaWater solubility = 0.018 g/100 g at 25 °C and 760 mm HgWater solubility = 165 ppm at 25 °CIn water, 164.9 mg/L at 25 °Csome polar solvents such as organic esters and amines: solubleSoluble in organic esters, dimethylacetamide and amines. Insoluble in water. |
| Flammpunkt | Flammable gasNA (Gas) |
| Siedepunkt | -123 °F at 760 mmHg (NTP, 1992)-85.7 °C-83 °C-122 °F |
| Schmelzpunkt | 166-170°C |
| Tg | -38 |
| Dampfdruck | 15 mm Hg ( 32 °C) |
| Brechungsindex | n20/D 1.42 |
| Lagerbedingungen | Sealed in dry,Room Temperature |
| Aggregatzustand | powder |
| Farbe | White |
| Stabilität | Stable. Incompatible with strong oxidizing agents, silica. |
| Kosmetik-Inhaltsstoffe Funktionen | BINDINGSKIN CONDITIONING |
| InChI | InChI=1S/C2H2F2/c1-2(3)4/h1H2 |
| InChIKey | BQCIDUSAKPWEOX-UHFFFAOYSA-N |
| SMILES | C(F)(F)=C |
| Oberflächenspannung | 30.3mN/m at 20°C |
| EPA chemische Informationen | Ethene, 1,1-difluoro-, homopolymer (24937-79-9) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 3.3% (12 of 362) of reports.DangerH220 (96.1%): Extremely flammable gas [Danger Flammable gases]P203, P210, P222, P280, P318, P337, P377, P381, P403, P405, P410+P403, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 362 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| Regulatorische Informationen | Chemical: Ethene, 1,1-difluoro-Ethene, 1,1-difluoro- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Ethene, 1,1-difluoro- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 27-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15215The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| DOT-Kennzeichnung | Flammable Gas |
| Brandgefahren | Excerpt from ERG Guide 116 [Gases - Flammable (Unstable)polymerization hazard]:· EXTREMELY FLAMMABLE.Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. Gas/air mixtures are explosive. Explosive. |
| Brandpotenzial | Flammable, dangerous fire risk |
| Gesundheitsgefahren | Excerpt from ERG Guide 116 [Gases - Flammable (Unstable)polymerization hazard]:· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas. |
| Gefahrenübersicht | A central nervous system depressant and a hepatotoxin in animal studies[ACGIH] Possible frostbite from contact with liquid[NIOSH] Inhalation of high concentrations may cause CNS effects[ICSC] 1,1-Difluoroethylene (UN1959) has warning of explosive polymerization |
Anwendungen & Verwendung
Verwenden
Coatings, film, filter cloth, instrument linings, filtration membranes, pump parts and linings and valves.