Sauerstoffdifluorid

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H270：Kann Brand verursachen oder verstärken; Oxidationsmittel.

  H314：Verursacht schwere Verätzungen der Haut und schwere Augenschäden.

  H330：Lebensgefahr bei Einatmen.

• Sicherheit

  P220：Von Kleidung und anderen brennbaren Materialien fernhalten.

  P244：Ventile und Ausrüstungsteile öl- und fettfrei halten.

  P260：Dampf/Aerosol/Nebel nicht einatmen.

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P271：Nur im Freien oder in gut belüfteten Räumen verwenden.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P284：Atemschutz tragen.

  P301+P330+P331：BEI VERSCHLUCKEN: Mund ausspülen. KEIN Erbrechen herbeiführen.

  P303+P361+P353：BEI BERÜHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.

  P304+P340：BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

  P310：Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen.

  P320：Besondere Behandlung dringend erforderlich

  P321：Besondere Behandlung

  P363：Kontaminierte Kleidung vor erneutem Tragen waschen.

  P370+P376：Bei Brand: Undichtigkeit beseitigen, wenn gefahrlos möglich.

  P403：An einem gut belüfteten Ort aufbewahren.

  P403+P233：An einem gut belüfteten Ort aufbewahren. Behälter dicht verschlossen halten.

  P405：Unter Verschluss aufbewahren.

  P501：Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Oxygen difluoride Chemische Eigenschaften,Einsatz,Produktion Methoden

• ERSCHEINUNGSBILD

  FARBLOSES KOMPRIMIERTES GAS MIT CHARAKTERISTISCHEM GERUCH.

• PHYSIKALISCHE GEFAHREN

  Das Gas ist schwerer als Luft.

• CHEMISCHE GEFAHREN

  Starkes Oxidationsmittel. Reagiert heftig mit brennbaren und reduzierenden Stoffen. Reagiert mit zahlreichen Stoffen, z.B. Nichtmetallen wie roter Phosphor, Borpulver und porösen Materialien wie Silica, Tonerde und Aktivkohle. Explodiert bei Kontakt mit Wasserdampf.

• ARBEITSPLATZGRENZWERTE

  TLV: 0.05 ppm (Spitzenbegrenzung); (ACGIH 2006).
  MAK nicht festgelegt.
  

• AUFNAHMEWEGE

  Aufnahme in den Körper in gefährlichen Mengen durch Inhalation.

• INHALATIONSGEFAHREN

  Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.

• WIRKUNGEN BEI KURZZEITEXPOSITION

  WIRKUNGEN BEI KURZZEITEXPOSITION:
  Tränenreizend. Die Substanz reizt die Atemwege. Inhalation des Gases kann zu Lungenödem führen (siehe ANMERKUNGEN). Exposition nur wenig oberhalb des Luftgrenzwertes kann zum Tod führen.

• LECKAGE

  Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Belüftung. Persönliche Schutzausrüstung: Gasdichter Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.

• Beschreibung

  Oxygen difluoride is a colorless gas with afoul, peculiar odor. Shipped as a nonliquefied compressedgas. Molecular weight= 54.00; Boiling point=-145.6℃;Freezing/Melting point =-223.9℃; Vapor pressure =>1 atm at 20℃; Relative vapor density (air = 1) 5 1.88.Slightly soluble in water (slowly reactive); solubility =0.02%.

• Chemische Eigenschaften

  Oxygen difluoride is a colorless gas. Foul, peculiar odor. Shipped as a nonliquefied compressed gas.

• Physikalische Eigenschaften

  Colorless gas with a characteristic odor; unstable in the presence of moisture, otherwise stable up to 250°C; gas density 2.21g/L at 25°C; liquefies to a yellowish-brown liquid at -144.8°C; density of the liquid 1.90g/ml at -223.8°C; solidifies at -223.8°C; slightly soluble in water, decomposing very slowly; solubility 68ml gas per liter of water at 0°C; slightly soluble in acids and alkali.

• Verwenden

  Commercial applications of oxygen difluoride are limited. It is used in organic synthesis to prepare fluoropropylenes and acylfluorides. It is used as an oxidizing and fluorinating agent in many preparative reactions and as a monomer in diolefin copolymerization.

• Verwenden

  Oxidant in missile propellant systems

• synthetische

  Oxygen difluoride may be prepared by passing fluorine gas slowly through a dilute solution of caustic soda. Usually a 2% solution of NaOH is suitable for the preparation:
  2F₂ + 2 Na OH → 2NaF + OF₂ + H₂O
  At a higher alkali concentration, oxygen is formed:
  2F₂ + 4NaOH → 4NaF + 2H₂O + O₂
  Oxygen difluoride can be produced by electrolysis of an aqueous solution of HF or, alternatively, electroylzing molten potassium hydrogen difluoride, KHF₂, in the presence of water.

• Definition

  ChEBI: Oxygen difluoride is an oxygen halide.

• Allgemeine Beschreibung

  A colorless poisonous gas with a strong peculiar odor. Highly toxic by inhalation. Corrosive to skin and eyes. Can explode on contact with water. Decomposes to toxic gaseous fluorine if heated to high temperature. Prolonged exposure of the containers to high heat may result in their violent rupturing and rocketing. Used as an oxidizer for propellants.

• Air & Water Reaktionen

  Violent explosions resulted when a spark was discharged in a 25-70% mixture of Oxygen difluoride with oxygen over water [Mellor 2, Supp. 1:191. 1956].

• Reaktivität anzeigen

  Oxygen difluoride is an oxidizing agent. Mixtures with carbon monoxide, with hydrogen, or with methane explode on sparking [Streng, A. G., Chem. Rev., 1963, 63, p. 610]. May react explosively with adsorbents (silica, alumina, molecular sieves, silica gel) [Streng A. G., Chem. Eng. News, 1965, 43(12), p. 5]; the presence of moisture may render such mixtures shock-sensitive [Metz, F. I., Chem. Eng. News, 1965, 43(7), p. 41]. Gives explosive reactions with diborane, hydrogen sulfide, nitrogen oxide, nitrosyl fluoride, charcoal, sulfur tetrafluoride. Warming of mixtures with halogens, with metal halides, with aluminum chloride, with antimony pentachloride, and with tungsten gives explosions. Ignites on contact with diborane tetrafluoride, phosphorus pentaoxide, red phosphorus, boron, silicon [Bretherick, 5th ed., 1995, p. 1419]. Incompatible with ammonia, arsenic trioxide, chromium trioxide, chlorine in the presence of copper, ozone [Lewis, 3rd ed., 1993, p. 978]. Reacts to incandescence with aluminum, barium, cadmium, magnesium, strontium, zinc, zirconium. Reacts with the alkali metals (lithium, sodium, potassium) [Streng, A. G., Chem. Rev., 1963, 63, p. 611].

• Hazard

  Oxygen difluoride is a highly toxic gas that attacks lungs, manifesting delayed symptoms. It causes irritation of eyes, lungs, and skin. Chronic exposure can lead to pulminary edema and congestion in lungs. Inhalation also can cause systemic toxic effects in humans. LC₅₀ inhalation (rat): 136ppm/1 hr The compound is a very powerful oxidizing agent. Contact with reducing agents can cause explosion.

• Health Hazard

  TOXIC; may be fatal if inhaled or absorbed through skin. Fire will produce irritating, corrosive and/or toxic gases. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Runoff from fire control may cause pollution.

• Brandgefahr

  Substance does not burn but will support combustion. Vapors from liquefied gas are initially heavier than air and spread along ground. These are strong oxidizers and will react vigorously or explosively with many materials including fuels. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react violently with air, moist air and/or water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

• Sicherheitsprofil

  Poison by inhalation. Human systemic effects by inhalation: chronic pulmonary edema or congestion. A corrosive skin, eye, and mucous membrane irritant. Attacks lungs with delayed appearance of symptoms. A very powerful oxidizer. Must be kept away from contact with reducing agents. Explosive reaction with adsorbents (e.g., sllica gel, alumina, molecular sieve), diborane, halogens + heat, metal halides, aluminum chloride, antimony pentachloride (at 1 50℃), tungsten + heat, hydrogen sulfide, liquid nitrogen oxide, nitrosyl fluoride, charcoal, sulfur tetrafluoride. Forms spark-sensitive explosive mixtures with water or combustible gases (e.g., carbon monoxide, hydrogen, methane). Ignites on contact with diborane tetrafluoride, nonmetals (e.g., red phosphorus, boron powder, silicon), phosphorus(V) oxide, nitrogen oxide gas. Incandescent reaction with metals (e.g., aluminum, barium, cadmium, magnesium, strontium, zinc, zirconium, lithium (above 4OO0C)), potassium (above 4OO0C), sodium. Incompatible with NH3, As203, Cl2 + Cu, CrO3, Ir, 03, O2 + H20, Pd, Pt, Rh, Ru, Si02. When heated to decomposition it emits highly toxic fumes of F-. See also FLUORIDES

• mögliche Exposition

  Oxygen difluoride is used as an oxidizer in missile propellant systems.

• 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—Yellow Stripe: Reactivity Hazard;Store separately in an area isolated from flammables, combustibles, or other yellow-coded materials. Prior to workingwith this chemical you should be trained on its proper handling and storage. Protect cylinder containers against physical damage. Do not use wood pallets. Preferably handlebehind body shield, in outdoor, or open protective fences.Wear long rubber gloves, goggles, protective clothing, andself-contained breathing apparatus. See 29 CFR 1910.101for specific regulations on storage of compressed gas. SeeOSHA Standard 1910.104 and NFPA 43A Code for theStorage of Liquid and Solid Oxidizers for detailed handlingand storage regulations

• Versand/Shipping

  Oxygen difluoride, compressed Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 5.1-Oxidizer, 8-Corrosive material, Inhalation Hazard Zone A. 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

  A strong oxidizer. Explodes on contact with steam. Violent reaction with reducing agents; combustible materials; chlorine, bromine, iodine, platinum, metal oxides; moist air; hydrogen sulfide (explosive in ambient air); hydrocarbons, water. Attacks mercury. Reacts, possibly violently, with many materials including porous materials (i.e., alumina, charcoal, and silica), mercury, and phosphorus.

• Waste disposal

  Spray or sift on a thick layer of a (1:1) mixture of dry soda ash and slaked lime behind ashield. After mixing, spray water from an atomizer with great precaution. Transfer slowly into a large amount of water. Neutralize and drain into the sewer with sufficient water.

7783-41-7, Oxygen difluoride Verwandte Suche: