CARBONYL FLUORIDE Struktur

Carbonyldifluorid

Bezeichnung:Carbonyldifluorid

CAS-Nr353-50-4

Englisch Name:CARBONYL FLUORIDE

CBNumberCB9253542

SummenformelCF2O

Molgewicht66.01

MOL-Datei353-50-4.mol

Synonyma

Carbonyldifluorid

Carbonoxifluorid

Difluorformaldehyd

Carbonyldifluorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	-114°C
Siedepunkt	-84°C
Dichte	1,139 g/cm³
Löslichkeit	reacts with H2O
Aggregatzustand	colorless gas
Farbe	colorless
Wasserlöslichkeit	instantly hydrolyzed by H2O [MER06]
EPA chemische Informationen	Carbonic difluoride (353-50-4)

Sicherheit

Kennzeichnung gefährlicher	T
R-Sätze:	8-23/24/25-34
S-Sätze:	3/7-9-36/37/39-38-45
RIDADR	2417
OEB	B
OEL	TWA: 2 ppm (5 mg/m3), STEL: 5 ppm (15 mg/m3)
Hazard Note	Highly Toxic
HazardClass	2.3
Giftige Stoffe Daten	353-50-4(Hazardous Substances Data)

Gefahreninformationscode (GHS)

CARBONYL FLUORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSES HYGROSKOPISCHES KOMPRIMIERTES FLüSSIGGAS MIT STECHENDEM GERUCH.
PHYSIKALISCHE GEFAHREN
Das Gas ist schwerer als Luft.
CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen auf 450-490°C unter Bildung giftiger Gase. Reagiert mit Wasser und feuchter Luft unter Bildung giftiger und ätzender Gase (Fluorwasserstoff, s. ICSC 0283).
ARBEITSPLATZGRENZWERTE
TLV: 2 ppm (als TWA); 5 ppm (als STEL); (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Gases.
INHALATIONSGEFAHREN
Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege. Inhalation hoher Konzentrationen kann zu Lungenödem führen (s.Anm.). Schnelle Verdampfung kann zu Erfrierungen führen. Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig (s.Anm.).
LECKAGE
Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Belüftung. Wasserstrahl NIEMALS auf die Flüssigkeit richten. Gasdichter Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.
R-Sätze Betriebsanweisung:
R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S3/7:Behälter dicht geschlossen halten und an einem kühlen Ort aufbewahren.
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S38:Bei unzureichender Belüftung Atemschutzgerät anlegen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
Carbonyl fluoride is a carboxy halide. It is colorless or light yellow, hygroscopic, compressed liquefiedgas, with a pungent, highly irritating and suffocating odor.Molecular weight=66.01; Specific gravity (H2O:1)=1.39at 2190℃; Boiling point=283℃; Freezing/Meltingpoint=2114℃; Relative vapor density (air=1)=2.29;Vapor pressure=55.4 atm. Hazard Identification (based onNFPA-704 M Rating System): Health 4, Flammability 0,Reactivity . Reacts with water.
Chemische Eigenschaften
Carbonyl fluoride is colorless or light yellow, hygroscopic, compressed liquefied gas. Pungent, highly irritating and suffocating odor.
Physikalische Eigenschaften
Colorless gas; pungent odor; hygroscopic; unstable; liquid density 1.139 g/mL (at -114°C); liquefies at -83.1°C; solidifies at -114°C; decomposes in water.
Verwenden
Organic synthesis.
synthetische
Carbonyl fluoride is prepared by the reaction of carbon monoxide with fluorine gas or silver fluoride:
CO + F₂ → COF₂
Also, it may be produced by the action of carbon monoxide with bromine trifluoride, BrF₃.
Allgemeine Beschreibung
A colorless gas with a pungent odor. Very toxic by inhalation. Prolonged exposure of the containers to fire or heat may result in violent rupturing and rocketing.
Air & Water Reaktionen
Reacts with water or steam to produces corrosive and toxic hydrofluoric acid fumes.
Reaktivität anzeigen
CARBONYL FLUORIDE is an acid fluoride. Incompatible with water, with bases (including amines), with strong oxidizing agents, with alcohols. Reacts violently with hexafluoroisopropylideneaminolithium. High temperature causes decomposition to toxic carbon monoxide gas and fluorine. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].
Hazard
Toxic by inhalation, strong irritant to skin. Lower respiratory tract irritant. Bone damage.
Health Hazard
Irritates lungs, causing delayed pulmonary edema. Slight gassing produces dryness or burning sensation in the throat, numbness, pain in the chest, bronchitis, and shortness of breath.
Brandgefahr
Special Hazards of Combustion Products: Toxic gas is generated when heated.
Sicherheitsprofil
A poison. Moderately toxic by inhalation. A powerful irritant. Hydrolyzes instantly to form HF on contact with moisture. See also CARBONYLS, HYDROFLUORIC ACID, and FLUORINE. Incompatible with hexafluoroisoprop ylideneamino-lithium. When heated to decomposition it emits toxic fumes of CO and F-. See CARBON MONOXIDE for fire and explosion hazard.
mögliche Exposition
Carbonyl fluoride is a carboxy halide. The major source of exposure to COF2 results from the thermal decomposition of fluoro carbon plastics, such as PTFE in air. Carbonyl fluoride is used for synthesizing fluoroalkanes, difluoroisocyanates, and fluorinated alkyl isocyanates. It may have been used as a military poison gas.
Erste Hilfe
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.Medical observation is recommended for 24-48 h afterbreathing overexposure, as pulmonary edema may bedelayed. As first aid for pulmonary edema, a doctor orauthorized paramedic may consider administering a corticosteroid spray. If frostbite has occurred, seek medical attention immediately; do NOT rub the affected areas or flushthem with water. In order to prevent further tissue damage,do NOT attempt to remove frozen clothing from frostbittenareas. If frostbite has NOT occurred, immediately and thoroughly wash contaminated skin with soap and water.
Lager
Color Code—White stripe: Contact Hazard; Storeseparately; not compatible with materials in solid white category. Storage area must be absolutely dry.
Versand/Shipping
UN2417 Carbonyl fluoride, Hazard class: 2.3; Labels: 2.3-Poisonous gas, 8-Corrosive material, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.
Inkompatibilitäten
Reacts with water to form toxic and corrosive HF gas. HF gas is highly reactive and forms explosive hydrogen gas on contact with metals. Do not use cast iron or malleable fittings with carbonyl fluoride. Carbonyl fluoride decomposes on heating above 450C producing toxic gases, including HF. Not compatible with hexafluoroisopropylidene-amino lithium; reaction may be dangerous.
Waste disposal
Return refillable compressed gas cylinders to supplier.

CARBONYL FLUORIDE Upstream-Materialien And Downstream Produkte

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