Ammoniumthiocyanat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H318：Verursacht schwere Augenschäden.

  H412：Schädlich für Wasserorganismen, mit langfristiger Wirkung.

• Sicherheit

  P273：Freisetzung in die Umwelt vermeiden.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P301+P312：BEI VERSCHLUCKEN: Bei Unwohlsein 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.

Ammonium thiocyanate Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
  R32:Entwickelt bei Berührung mit Säure sehr giftige Gase.
  R52/53:Schädlich für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
  R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

• S-Sätze Betriebsanweisung:

  S13:Von Nahrungsmitteln, Getränken und Futtermitteln fernhalten.
  S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
  S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
  S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

• Aussehen Eigenschaften

  CH4N2S; Ammoniumrhodanid, Ammoniumsulfocyanid. Farbloses, geruchloses Pulver.

• Gefahren für Mensch und Umwelt

  Gesundheitsschädlich beim Einatmen, Verschlucken und Berührung mit der Haut.
  Führt nach Resorption zu Fieber und ZNS-Störungen. 15 - 30 g können tödlich sein.
  Entwickelt bei Berührung mit Säure sehr giftige Gase. Nicht mit Säuren oder Oxidationsmitteln in Berührung bringen.
  LD_Lo (oral, Mensch): 15 g

• Schutzmaßnahmen und Verhaltensregeln

  Geeignete Schutzhandschuhe als kurzzeitiger Staubschutz.

• Verhalten im Gefahrfall

  Staubentwicklung vermeiden. Stäube nicht einatmen.
  Trocken aufnehmen. Der Entsorgung zuführen. Nachreinigen.
  Wasser, Schaum.
  Nicht brennbar. Im Brandfall können Schwefeloxide, nitrose Gase, Ammoniak und Blausäure freigesetzt werden.

• Erste Hilfe

  Nach Hautkontakt: Mit reichlich Wasser abwaschen.
  Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
  Nach Einatmen: Frischluft, Sauerstoffzufuhr. Sofort Arzt hinzuziehen.
  Nach Verschlucken: Reichlich Wasser trinken lassen. Erbrechen auslösen. sofort Arzt hinzuziehen.
  Nach Kleidungskontakt: Kontaminierte Kleidung sofort entfernen.
  Ersthelfer: siehe gesonderten Anschlag

• Sachgerechte Entsorgung

  Als basische Lösung in Wasser in die entsprechenden wässrigen Salzlösungen oder fest als Laborchemikalienabfälle entsorgen.

• Beschreibung

  Ammonium thiocyanate is a colorless solid which absorbs moisture and becomes liquid. Molecularweight= 76.12; Boiling point= 115℃; Freezing/Meltingpoint=160℃, decomposes at 170℃; Heat of solution=3.1 3 105 J/kg. Hazard Identification (based on NFPA-704 M Rating System): Health 2, Flammability 1,Reactivity 1, Corrosive. Soluble in water.

• Chemische Eigenschaften

  colourless or white crystals or powder

• Chemische Eigenschaften

  Ammonium thiocyanate is a colorless solid which absorbs moisture, becoming liquid, known as the “liquor.”

• Verwenden

  Colorless deliquescent crystals made by boiling an aqueous solution of ammonium cyanide with sulfur or polysulfides. It must be kept in a well-sealed container. The principal use for ammonium thiocyanate was in gold-toning formulas, but it was also used in a 5 percent solution to dissolve gelatin in overexposed carbon prints.

• Verwenden

  Used as a determination of iron, mercury, and silver.

• Verwenden

  Applied in the formation of novel two-dimensional Cd-SCN coordination solids with unusual and tailorable, checkerboard- or herringbone-patterned structures these structures are important steps toward technologically useful materials.1

• Verwenden

  In matches; double-dyeing fabrics; photography; improving and increasing strength of silks weighted with tin salts; producing grayish-black coating on Zn; manufacture of transparent artificial resins, thiourea; in pesticides. Detection and determination of small quantities of Fe; determination of Ag, Hg, etc.

• Vorbereitung Methode

  Ammonium thiocyanate (plus ammonium sulfide) [CAS: 12135-76-1] may be made by reaction of ammonia and carbon disulfide, a reaction which probably accounts for the presence of ammonium thiocyanate in the products of the destructive distillation of coal. This reaction corresponds to the formation of ammonium cyanate from ammonia and carbon dioxide.

• synthetische

  (NH₄)₂S is obtained from reacting hydrogen sulfide with excess of ammonia:
  H₂S + ₂NH₃ → (NH₄)₂S.

• Definition

  ammonium thiocyanate: A colourless, soluble crystalline compound,NH₄NCS. It is made by theaction of hydrogen cyanide on ammoniumsulphide or from ammoniaand carbon disulphide in ethanol. Onheating, it turns into its isomerthiourea, SC(NH₂)₂. Its solutions givea characteristic blood-red colour withiron(III) compounds and so are employedas a test for ferric iron. Ammoniumthiocyanate is used as arapid fixative in photography and asan ingredient in making explosives.

• Allgemeine Beschreibung

  Ammonium thiocyanate is a colorless crystalline solid. Ammonium thiocyanate is soluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Ammonium thiocyanate is used in chemical analysis, in photography, as a fertilizer, and for many other uses.

• Air & Water Reaktionen

  Water soluble.

• Reaktivität anzeigen

  Ammonium thiocyanate can release ammonia vapors if mixed with a chemical base or with an acid. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents (such as chlorates(potassium chlorate), nitrates, nitric acid, and peroxides). Nitric acid violently oxidized a thiocyanate solution [Bretherick 1979 p. 121]. An explosion of guanidine nitrate demolished an autoclave built to withstand 50 atmospheres, in which Ammonium thiocyanate was being made from Ammonium thiocyanate and lead nitrate [C. Angew. Chem. 49:23 1936].

• Health Hazard

  Inhalation of dust causes irritation of nose and throat. Ingestion causes dizziness, cramps, nervous disturbances. Dust irritates eyes. Can be absorbed through skin; prolonged contact may produce various skin eruptions, dizziness, cramps, nausea, and mild to severe disturbance of the nervous system.

• Brandgefahr

  Special Hazards of Combustion Products: Decomposes to form ammonia, hydrogen sulfide, and hydrogen cyanide. Oxides of nitrogen may also form. All of these products are toxic.

• Flammability and Explosibility

  Non flammable

• Sicherheitsprofil

  Poison by ingestion and intraperitoneal routes. Human systemic effects by ingestion: hallucinations and distorted perceptions, nausea or vomiting, and other gastrointestinal effects. See also THIOCYANATES. When heated to decomposition it emits toxic fumes of NH3, NOx, SO,, and CN-. Incompatible with KClO3 and mixtures with Pb(NO3)2.

• mögliche Exposition

  It has many uses in making matches, fabric processing; metals processing; chemical manufacturing, electroplating; zinc coating; liquid rocket propellents, fabric dyeing, polymerization catalyst, in photography. Used as a laboratory chemical. May be used as an agricultural chemical: herbicides, weed killers, defoliants.

• 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.

• Lager

  Color Code—White: Corrosive or Contact Hazard;Store separately in a corrosion-resistant location. Prior to nitrate, since violent reactions occur. Store in tightly closedcontainers in a cool, well-ventilated area away from moisture, acid, acid fumes, or chlorine because toxic fumes arereleased. Where possible, automatically pump liquid fromdrums or other storage containers to process containers.working with this chemical you should be trained on itsproper handling and storage. Ammonium thiocyanate mustbe stored to avoid contact with Potassium chlorate and Lead

• Versand/Shipping

  UN2672 Ammonia solutions, relative density between 0.880 and 0.957 at 15 C in water, with . 10 % but not . 35 % ammonia, Hazard class: 8; Labels: 8- Corrosive material. UN3082 Environmentally hazardous substances, liquid, n.o.s., Hazard class: 9; Labels: 9- Miscellaneous hazardous material, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

• läuterung methode

  Crystallise it three times from dilute HClO4 to give material optically transparent at wavelengths longer than 270nm. It has also been crystallised from absolute MeOH or from acetonitrile.

• Inkompatibilitäten

  Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Acts as an acid; incompatible with lead nitrate, chlorates, nitric acid, acid, acid fumes. In the presence of moisture, this chemical is corrosive to brass, copper, iron. Ammonium thiocyanate liquor can release ammonia vapors if mixed with a chemical base or with an acid. Violent or explosive reactions have occurred when thiocyanates are mixed with oxidizing agents . Nitric acid violently oxidized a thiocyanate solution . An explosion of guanidine nitrate demolished an autoclave built to withstand 50 atmospheres, in which it was being made from ammonium thiocyanate and lead nitrate .

• Waste disposal

  Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Slowly add to large container of water. Stir in slight excess of soda ash. Decant or siphon liquid from sludge, neutralize with HCl and flush to sewer. Sludge may be landfilled.

Ammonium thiocyanate Upstream-Materialien And Downstream Produkte

Ammoniumthiocyanat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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