Cadmiumoxid

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H330：Lebensgefahr bei Einatmen.

  H341：Kann vermutlich genetische Defekte verursachen.

  H350：Kann Krebs verursachen.

  H372：Schädigt bei Hautkontakt und Verschlucken die Organe bei längerer oder wiederholter Exposition.

  H410：Sehr giftig für Wasserorganismen mit langfristiger Wirkung.

• Sicherheit

  P202：Vor Gebrauch alle Sicherheitshinweise lesen und verstehen.

  P260：Dampf/Aerosol/Nebel nicht einatmen.

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P270：Bei Gebrauch nicht essen, trinken oder rauchen.

  P273：Freisetzung in die Umwelt vermeiden.

Cadmium oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

• ERSCHEINUNGSBILD

  GERUCHLOSE, BRAUNE KRISTALLE ODER AMORPHES PULVER.

• CHEMISCHE GEFAHREN

  Reagiert sehr heftig mit Magnesium beim Erhitzen. Feuer- und Explosionsgefahr.

• ARBEITSPLATZGRENZWERTE

  TLV: als Cd (Gesamtstaub) 0.01 mg/m?(als TWA); (Alveolengängige Fraktion) 0.002 mg/m?(als TWA); Krebskategorie A2 (Verdacht auf krebserzeugende Wirkung beim Menschen); BEI vorhanden; (ACGIH 2005).
  MAK: (Einatembare Fraktion); Hautresorption; Krebserzeugend Kategorie 1; Keimzellmutagen Kategorie 3A; (DFG 2005).
  

• AUFNAHMEWEGE

  Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken

• INHALATIONSGEFAHREN

  Eine gesundheitsschädliche Partikelkonzentration in der Luft kann beim Dispergieren schnell erreicht werden.

• WIRKUNGEN BEI KURZZEITEXPOSITION

  WIRKUNGEN BEI KURZZEITEXPOSITION:
  Die Substanz reizt die Atemwege. Reizt möglicherweise die Augen mechanisch. Inhalation des Aerosols kann zu Lungenödem führen (s.Anm.). Exposition weit oberhalb der Arbeitsplatzgrenzwerte kann zum Tod führen. Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig.

• WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

  Möglich sind Auswirkungen auf Nieren und Lunge mit nachfolgenden Nierenschäden und Gewebeschäden. Krebserzeugend für den Menschen.

• LECKAGE

  Persönliche Schutzausrüstung: Atemschutzgerät, P3-Filter für giftige Partikel. NICHT in die Umwelt gelangen lassen. Verschüttetes Material aufsaugen mit Spezialausrüstung ODER Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen.

• R-Sätze Betriebsanweisung:

  R49:Kann Krebs erzeugen beim Einatmen.
  R22:Gesundheitsschädlich beim Verschlucken.
  R48/23/25:Giftig: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen und durch Verschlucken.
  R68:Irreversibler Schaden möglich.
  R63:Kann das Kind im Mutterleib möglicherweise schädigen.
  R62:Kann möglicherweise die Fortpflanzungsfähigkeit beeinträchtigen.
  R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
  R26:Sehr giftig beim Einatmen.
  R45:Kann Krebs erzeugen.

• S-Sätze Betriebsanweisung:

  S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
  S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
  S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
  S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.

• Beschreibung

  Cadmium oxide forms brownish-red crystalsor a yellow to dark brown amorphous powder. Molecularweight=128.4; Freezing/Melting point=900℃ (slowdecomposition begins at 700℃); Sublimation point 51559℃. Hazard Identification (based on NFPA-704 MRating System): Health 3, Flammability 0, Reactivity 0.Very slightly soluble in water.

• Chemische Eigenschaften

  Cadmium oxide forms brownish-red crystals or a yellow to dark brown amorphous powder.

• Chemische Eigenschaften

  Cadmium fume (as Cd) is fi nely divided solid particles dispersed in air.

• Chemische Eigenschaften

  dark brown powder or crystals

• Physikalische Eigenschaften

  Occurs in two forms, alpha form—a colorless amorphous powder, and beta form—a reddish-brown crystal; density 6.95 g/cm³ (alpha form) and 8.15 g/cm³ (beta form); decomposes on rapid heating at 900°C; sublimation temperature 1,559°C; insoluble in water and alkalis; dissolves in mineral acids.

• Verwenden

  In phosphors, semiconductors; manufacture of silver alloys, glass; in storage battery electrodes; as nematocide; as catalyst for organic reactions, in cadmium electroplating; in ceramic glazes.

• Verwenden

  This is used for cadmium plating baths, electrodes for batteries (cells), ceramic glazes, and insecticides. CdO is a deadly poison and carcinogen.

• Verwenden

  Cadmium oxide is used as an electroplating chemical, catalyst, component of semiconductors, and starting material for PCV heat stabilizers; in glass and ceramic glazes; for production of cadmium electrodes in storage batteries; and in other applications.

• Vorbereitung Methode

  Cadmium oxide is manufactured commercially by distilling cadmium metal from graphite retort and allowing vapor to react with air.

• synthetische

  Cadmium oxide is prepared by the reaction of cadmium vapor with oxygen. The metal is first melted in a steel retort and transported into a heated chamber where it is vaporized. The vapor is reacted with air, and the cadmium oxide formed is collected in a bag house. The particle size of the product depends on the ratio of air to cadmium vapor. The oxide may be further purified and particles of uniform size may be obtained by calcination at low red heat.
  Cadmium oxide also may be prepared by several other routes starting with various cadmium salts. The compound can be made by thermal decomposition of cadmium carbonate or cadmium hydroxide:
  CdCO₃ → CdO + CO₂
  Cd(OH)₂ → CdO + H₂O
  Similar thermal decomposition of cadmium nitrate or sulfate would yield the oxide.
  he oxide. Cadmium oxide also may be made by high temperature oxidation of cadmium sulfide:
  2CdS + 3O₂ → 2CdO + 2SO₂
  Finely divided oxide may be obtained by pyrolysis of cadmium salts of carboxylic acids, such as cadmium formate or oxalate.
  (COOH)₂Cd → CdO + H₂O + 2CO
  (COO)₂Cd → CdO + CO₂ + CO

• Allgemeine Beschreibung

  Brown crystals or brown amorphous powder. Used as an electroplating chemical and in the manufacture of cadmium electrodes. Is a component of silver alloys, phosphors, semiconductors, glass and ceramic glazes. Formerly used by veterinarians to kill worms and parasites.

• Air & Water Reaktionen

  Insoluble in water.

• Reaktivität anzeigen

  Cadmium oxide reacts violently with magnesium.

• Hazard

  Inhalation of vapor or fume may be fatal. A confirmed carcinogen.

• Health Hazard

  The lethal inhalation dose of Cadmium oxide in humans is 2,500 mg/m3 for a 1 minute exposure. Lethal exposure has been established at 50 mg (cadmium)/m3 for 1 hour for Cadmium oxide dust and 1/2 hour for the fume. These concentrations may be inhaled without sufficient discomfort to warn worker of exposure. Inhalation may cause acute tracheobronchitis, pneumonitis, and pulmonary edema. Exposure can cause kidney and lung damage. Acute exposure by inhalation may cause death by anoxia. The lowest human toxic inhalation concentration is 8.630 mg/m3/5 hours for the fume. Persons with respiratory disorders should be excluded from contact with Cadmium oxide.

• Health Hazard

  Exposure to cadmium fume causes adverse health effects among occupational workers. The symptoms of toxicity and poisoning include, but are not limited to, pulmonary edemadyspnea, coughing, tight chest, substernal pain, headaches, chills, muscle aches, nausea, vomiting, diarrhea, emphysema, proteinuria, anosmia, and mild anemia. Exposures also cause kidney and lung damage

• Brandgefahr

  When heated to decomposition, Cadmium oxide emits toxic fumes of cadmium. (Non-Specific -- Cadmium Compounds) Fire may produce irritating or poisonous gases. Runoff from fire control or dilution water may cause pollution. Oxides of cadmium react explosively with magnesium when heated.

• Sicherheitsprofil

  Confirmed human carcinogen with experimental neoplastigenic data. Poison by ingestion, inhalation, and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Human systemic effects by inhalation include: change in the sense of smell, change in heart rate, blood pressure increase, an excess of protein in the urine, and other kidney or bladder changes. Mixtures with magnesium explode when heated. When heated to decomposition it emits toxic fumes of Cd. See also CADMIUM COMPOUNDS.

• mögliche Exposition

  Cadmium oxide is used as an electroplating chemical and in the manufacture of semiconductors and cadmium electrodes; synthesis of other cadmium salts; a component of silver alloys, phosphorus, glass and ceramic glazes, semiconductors, and batteries. Used as a vermicide

• 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. Seekmedical 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.Note to Physician: In case of fume inhalation, treat pulmonary edema. Give prednisone or other corticosteroid orallyto reduce tissue response to fume. Positive-pressure ventilation may be necessary. Treat metal fume fever with bedrest, analgesics, and antipyretics. The symptoms of metalfume fever may be delayed for 4-12 h following exposure:it may last less than 36 h.Note to physician: For severe poisoning do not useBAL [British Anti-Lewisite, dimercaprol, dithiopropanol(C3H8OS2)] as it is contraindicated or ineffective inpoisoning from cadmium.

• Lager

  Color Code—Blue: Health Hazard: Store in asecure poison location. Prior to working with cadmiumoxide you should be trained on its proper handling and storage. Store in tightly closed containers in a cool,well-ventilated area, away from magnesium, oxidizers,combustible materials, heat, moisture, and acids. Where thischemical is used, handled, manufactured, or stored, useexplosion-proof electrical equipment and fittings. A regulated, marked area should be established where this chemical is handled, used, or stored in compliance with OSHAStandard 1910.1045.

• Versand/Shipping

  UN2570 Cadmium compounds, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

• Inkompatibilitäten

  Oxides of cadmium react explosively with magnesium, especially when heated. Heat above 700C causes slow decomposition. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); light metals: contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, hydrogen sulfide, hydrazine nitrate. May ignite combustibles, such as wood, paper, oil, etc

• Waste disposal

  Form nitrate with HNO3, precipitate with H2S, filter, package and return to supplier.

Cadmium oxide Upstream-Materialien And Downstream Produkte

Cadmiumoxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(227)Suppliers

1306-19-0, Cadmium oxide Verwandte Suche: