Bariumnitrat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H272：Kann Brand verstärken; Oxidationsmittel.

  H301：Giftig bei Verschlucken.

  H319：Verursacht schwere Augenreizung.

  H332：Gesundheitsschädlich bei Einatmen.

• Sicherheit

  P210：Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.

  P220：Von Kleidung und anderen brennbaren Materialien fernhalten.

  P261：Einatmen von Staub vermeiden.

  P301+P310：BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

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

Barium nitrate Chemische Eigenschaften,Einsatz,Produktion Methoden

• ERSCHEINUNGSBILD

  FARBLOSE BIS WEISSE KRISTALLE ODER KRISTALLINES PULVER.

• CHEMISCHE GEFAHREN

  Zersetzung beim Erhitzen unter Bildung von Stickstoffoxiden. Starkes Oxidationsmittel. Reagiert mit brennbaren und reduzierenden Stoffen. Reagiert mit Metallpulver unter Feuer- und Explosionsgefahr.

• ARBEITSPLATZGRENZWERTE

  TLV:(Barium, löslich) 0.5 mg/m?(als TWA); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); (ACGIH 2005).
  MAK:(lösliche Bariumverbindungen) 0.5 mg/m?(Einatembare Fraktion); Spitzenbegrenzung: überschreitungsfaktor II(2); (DFG 2005).
  

• AUFNAHMEWEGE

  Aufnahme in den Körper durch Inhalation und durch Verschlucken.

• INHALATIONSGEFAHREN

  Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden, besonders als Pulver.

• WIRKUNGEN BEI KURZZEITEXPOSITION

  WIRKUNGEN BEI KURZZEITEXPOSITION:
  Die Substanz reizt die Augen, die Haut und die Atemwege. Exposition kann zu Hypokaliämie führen mit nachfolgenden Herzfunktionsstörungenund Muskelerkrankungen. Exposition kann zum Tod führen.

• LECKAGE

  Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Dann mit viel Wasser wegspülen. NICHT in die Umwelt gelangen lassen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.

• R-Sätze Betriebsanweisung:

  R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
  R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
  R36/38:Reizt die Augen und die Haut.
  R34:Verursacht Verätzungen.
  R26:Sehr giftig beim Einatmen.
  R25:Giftig beim Verschlucken.

• S-Sätze Betriebsanweisung:

  S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
  S17:Von brennbaren Stoffen fernhalten.
  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
  S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
  S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).

• Beschreibung

  Barium nitrate is a stable, strong oxidiser. It is incompatible with combustible material, reducing agents, acids, acid anhydrides, and moisture-sensitive substance. Barium nitrate is poisonous, is a respiratory irritant, and is hazardous if mixed with flammable materials. Barium oxide plus zinc, aluminium and magnesium alloys are combustibles (paper, oil, wood), acids, and oxidisers and is hazardous. Mixtures with finely divided aluminium–magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Barium nitrate mixed with aluminium powder, a formula for flash powder, is highly explosive. However, barium nitrate is noncorrosive in presence of glass. It is used in military thermite grenades, in the manufacturing process of barium oxide, in the vacuum tube industry, and in pyrotechnics for green flame.
  

• Chemische Eigenschaften

  Barium nitrate is a shiny, white crystalline solid. It forms white crystals that are soluble in water at 20℃. It is formed by the reaction of barium carbonate or barium hydroxide with nitric acid. It is hazardous as magnesium plus barium oxide plus zinc, aluminum and magnesium alloys, combustibles (paper, oil, wood), acids, and oxidizers. Mixtures with nely divided aluminum-magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Barium nitrate on contact with combustible materials will ignite. Barium nitrate mixed with aluminum powder, a formula for l ash powder is highly explosive.

• Physikalische Eigenschaften

  Barium nitrate has the molecular formula of Ba(NO3)2 and the molecular weight of 261.3745 g/mol. It is also known as “nitrobarite”. Its CAS number is 10022-31-8. It is soluble in water.
  It can be prepared by a number of methods. The reaction between nitric acid and barium metal is one way and reaction with BaO or BaCO3 is another. Barium hydroxide and ammonium nitrate also form the product but ammonia is released as a by-product:
  2HNO3 + Ba ---> Ba(NO3)2 +H2
  2HNO3 + BaO ---> Ba(NO3)2 +H2O
  Ba(OH)2 + 2NH4NO3 ---> Ba(NO3)2 + 2NH3 + 2H2O
  Barium nitrate can also be prepared by the reaction of barium carbonate or barium carbonate with nitric acid:
  BaCO3 + 2HNO3 ---> Ba(NO3)2 + CO2 +H2O

• Verwenden

  manufacture of BaO2; pyrotechnics for green fire; green signal lights; in the vacuum-tube industry.

• Verwenden

  Barium nitrate [Ba(NO3)2] burns with a bright green flame and is used in signal flares and pyrotechnics. It can be produced by treating barium carbonate with nitric acid.

• Verwenden

  Barium nitrate is used in industry in the production of green signal lights, to remove gases from vacuum tubes, and in the production of barium oxide.

• synthetische

  Barium Nitrate can be prepared by a number of methods. The reaction between nitric acid and barium metal is one way and reaction with BaO or BaCO3 is another. Barium hydroxide and ammonium nitrate also form the product but ammonia is released as a by-product:
  2HNO3＋ Ba→Ba(NO3)2＋H2
  2HNO3＋ BaO→Ba(NO3)2＋H2O
  Ba(OH)2＋ 2NH4NO3→Ba(NO3)2＋ 2NH3＋ 2H2O
  Barium nitrate can also be prepared by the reaction of barium carbonate or barium carbonate with nitric acid:
  BaCO3＋ 2HNO3→Ba(NO3)2＋ CO2＋H2O
  In this method, barium carbonate is suspended in nitric acid. The solution is filtered and the product crystallizes out. Alternatively, barium carbonate and nitric acid are added to a saturated solution of barium nitrate. The product is then obtained by crystallization. Barium nitrate may also be prepared by adding sodium nitrate to a saturated solution of barium chloride. Barium nitrate precipitates out from the solution. The precipitate is filtered, washed with alcohol and dried.

• Definition

  ChEBI: Barium nitrate is an inorganic nitrate salt of barium. It is an inorganic barium salt and an inorganic nitrate salt.

• Allgemeine Beschreibung

  A white crystalline solid. Noncombustible, but accelerates burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided, an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen produced in fires.

• Air & Water Reaktionen

  Soluble in water.

• Reaktivität anzeigen

  Mixtures of metal nitrates with alkyl esters may explode, owing to the formation of alkyl nitrates. Mixtures of nitrates with phosphorus, tin(II) chloride, or other reducing agents may react explosively [Bretherick 1979 p. 108-109].

• Hazard

  Strong oxidizing agent. See barium.

• Health Hazard

  Exposures to barium nitrate by ingestion or inhalation cause poisoning. The symptoms include, but are not limited to, ringing of the ears, dizziness, irregular and elevated blood pressure, blurred vision, irritation to the respiratory system, tightness of muscles (especially in the face and neck), vomiting, diarrhea, abdominal pain, muscular tremors, anxiety, weak- ness, labored breathing, cardiac irregularity, and convulsions. Poisoned workers also suffer from kidney damage, cardiac or respiratory failure, tremors, convulsions, coma, and possi- bly death. Prolonged periods of exposure to barium nitrate is known to cause damage of the liver (anemia and possibly methemoglobinemia), spleen, kidney, bone marrow, and the CNS.

• Flammability and Explosibility

  Non flammable

• Sicherheitsprofil

  A poison by ingestion, subcutaneous, parenteral, and intravenous routes. An irritant to slun and eyes. When heated to decomposition it emits very toxic fumes of NO,. An oxiduer. Mixtures with finely divided aluminum-magnesium alloys are easily ignitable and extremely sensitive to friction or impact. Such mixtures are used in chemical photoflash applications. Incompatible with (Mg + BaO2 + Zn), Al, and Mg alloys. When heated to decomposition it emits toxic fumes of NO,. See also BARIUM COMPOUNDS (soluble) and NITRATES.

• mögliche Exposition

  Barium nitrate is used in making fireworks (in green fire pyrotechnics), signal lights, ceramics; and in the electronics industry; to make BaO2. Once used in the vacuum tube industry.

• 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. Seealso First Aid section in “Barium” entry.

• Lager

  Barium nitrate should be kept stored in a tightly closed container, in a cool, dry, venti- lated area, protected against physical damage. It should be separated from heat, sources of ignition, incompatible substances, combustibles, and organic or other readily oxidizable materials. Barium nitrate should not be stored on wood l oors or with food and beverages

• Versand/Shipping

  UN1446 Barium nitrate, Hazard Class: 5.1; Labels: 5.1—Oxidizer, 6.1—Poisonous materials.

• läuterung methode

  Crystallise it twice from water (4mL/g) and dry it overnight at 110o. It decomposes at higher temperatures to give mostly the oxide and the peroxide with only a little of the nitrite. POISONOUS. [Ehrlich in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 941 1963.]

• Inkompatibilitäten

  A strong oxidizer. Decomposes in heat; may detonate if confined in elevating temperatures. Keep away from strong acids; reducing agents. Contact with organic and combustible materials (such as wood, paper, oil and fuels); and aluminum magnesium alloys, since violent reactions occur. Contact with sulfur powder and finely divided metals can form shock-sensitive compounds.

• Waste disposal

  Dissolve waste in 6-MHCl. Neutralize with NH4OH. Precipitate with excess sodium carbonate. Filter, wash and dry precipitate and return to supplier.

• Vorsichtsmaßnahmen

  After accidental exposures to barium nitrate by ingestion, swallow, or inhalation, workers should induce vomiting immediately as directed by medical personnel. Never give any- thing by mouth to an unconscious person. Get medical attention immediately

Barium nitrate Upstream-Materialien And Downstream Produkte

10022-31-8, Barium nitrate Verwandte Suche: