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HCID 8263Erstellt: 4. November 2026

Octafluorocyclobutane

C318 · R318 · FC318 · RC318 · r-c318 · R C318 · FKWC318 · CFC-318

https://huagongshe.com/de/chemical/8263

Molekülstruktur von Octafluorocyclobutane

Identifikatoren & physikalische Daten

CAS No.115-25-3
SummenformelC4F8
Durchschnittliche Molmasse200,03 g/mol
Monoisotopische Masse199,98722576 g/mol
SMILESFC1(F)C(F)(F)C(F)(F)C1(F)F
InChIKeyBCCOBQSFUDVTJQ-UHFFFAOYSA-N
PubChem CID8263
ChEMBLCHEMBL444147
ChEBICHEBI:31007
EC No.204-075-2
DTXSIDDTXSID9041811

Chemische & physikalische Eigenschaften

XLogP1,6
Polarare Oberfläche (TPSA)0
H-Brücken-Donoren0
H-Brücken-Akzeptoren8
Frei drehbare Bindungen0
Schwere Atome12
Formalladung0
Komplexität151
StoffklassenOther Classes -> Halogenated Cyclic Hydrocarbons
PFASPFAS -> PFAS identified in REACH Regulation EC No. 1272/2008PFAS -> Other/unspecifiedPFAS -> Intentionally added food contact chemicalsPFAS -> OECD CategoryPFAS -> non-polymer
SpringerMaterials PropertiesSchoenflies notation
LebensmittelzusatzstoffePROPELLANT -> FDA Substance added to food
Dichte1.513 @ -21°C1,48 g/cm3
Löslichkeit0.0236 mg/mL at 25 °C
Siedepunkt-6.04 °C @760 [mm Hg]-6 °C
Schmelzpunkt-41.4 °C
Physical DescriptionOctafluorocyclobutane is a colorless nonflammable gas. It may be harmful by asphyxiation. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. It is used to make other chemicals.Gas VaporLiquidNon-flammable and non-toxic gas[Merck Index] Colorless odorless liquefied gas[Air Liquide America MSDS]
Brechungsindex1.217
Henry-Konstante1.2×10-6 mol/(m3Pa) at 25℃, Clever et al. (2005)
InChIInChI=1S/C4F8/c5-1(6)2(7,8)4(11,12)3(1,9)10
InChIKeyBCCOBQSFUDVTJQ-UHFFFAOYSA-N
SMILESC1(F)(F)C(F)(F)C(F)(F)C1(F)F
LogP (Verteilungskoeffizient)1.97
CAS Datenbank115-25-3(CAS DataBase Reference)
NIST chemische InformationenOctafluorocyclobutane(115-25-3)
EPA chemische InformationenPerfluorocyclobutane (115-25-3)

Sicherheit & Vorschriften

GHS-EinstufungWarningH280 (69.3%): Contains gas under pressuremay explode if heated [Warning Gases under pressure]P273, P391, P410+P403, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 153 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H280: Contains gas under pressure
Regulatorische InformationenChemical: Cyclobutane, octafluoro-Cyclobutane, 1,1,2,2,3,3,4,4-octafluoro- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cyclobutane, 1,1,2,2,3,3,4,4-octafluoro- 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)REACH registered substance: Octafluorocyclobutane (EC: 204-075-2)The 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-KennzeichnungNon-Flammable Gas
BrandgefahrenExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:· Some may burn but none ignite readily.
GesundheitsgefahrenExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
GefahrenübersichtCauses changes in recordings from specific areas of the CNS in 17-week intermittent inhalation studies of mice[RTECS] May cause asphyxiation[CAMEO] A simple asphyxiantEvaporating liquid can cause frostbite[Air Liquide America MSDS]
DOT-Nummer und Handbuch1976 126
Reaktive GruppeFluorinated Organic Compounds
Reactivity Profile

Anwendungen & Verwendung

Verwenden

Refrigerant; heat-transfer medium.Halocarbon 318 is used for plasma etching. When it is exposed to the RF field generated in the etching process, a gas plasma is produced that will etch silicon compounds with excellent selectivity.

OCTAFLUOROCYCLOBUTANE is chemically inert in many situations, but can react violently with strong reducing agents such as the very active metals and the active metals. They suffer oxidation with strong oxidizing agents and under extremes of temperature.
DOT Hazard ClassificationOctafluorocyclobutane, or Refrigerant gas RC 318UN1976Div 2.2 Non-flammable compressed gas (49 eCFR § 173.115)
Air and Water ReactionsNo rapid reaction with air. No rapid reaction with water.
Hazard Classes and CategoriesPress. Gas (Comp.) (69.3%)Gases under pressure - Low pressure liquefied gas
BrandbekämpfungExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:
Freisetungsmaßnahmen· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· Do not touch or walk through spilled material.
Erste HilfeExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:General First Aid:
Expositionsschutz und Persönliche Schutzausrüstung· Wear positive pressure self-contained breathing apparatus (SCBA).
Freisetung ohne BrandExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:
Isolation and EvacuationExcerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:Immediate precautionary measure
Protective Action Criteria (PAC)400 [ppm]4400 [ppm]27000 [ppm]
Personal Protective Equipment (PPE)Excerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:
Emergency Response Planning Guidelines· Use extinguishing agent suitable for type of surrounding fire.
Unerwünschte WirkungenOther Poison - Simple Asphyxiant
Toxicity DataLCLo (mouse) = 780,000 ppm/2hr
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 1976 (OCTAFLUOROCYCLOBUTANE (REFRIGERANT GAS RC 318))
Zollcode2903898060
Toxizitätmouse,LCLo,inhalation,78pph/2H (780000ppm),Trudy Leningradskogo Sanitarno-Gigienicheskogo Meditsinskogo Instituta. Vol. 111, Pg. 39, 1975.
GefahrensymboleXi
hazard_noteIrritant
Sicherheitshinweise (S)23-38
Gefahrenklasse2.2