Hexafluorosilikate, Ammonium-Salz

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Sicherheit

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

Ammonium hexafluorosilicate Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.

• S-Sätze Betriebsanweisung:

  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).

• Chemische Eigenschaften

  Ammonium hexafluorosilicate is a white crystalline powder. Odorless.

• Chemische Eigenschaften

  white slightly adhering crystalline powder

• Physikalische Eigenschaften

  d 2.01 g cm?3; decomposes prior to melting; odorless.

• Verwenden

  Ammonium hexafluorosilicate is used as a disinfectant and analytical reagent. It finds application in etching glass, metal casting, and electroplating. It is also employed as a wood preservative agent and mothproofing agent in textiles. It plays a useful application in soldering flux. It is also used to arrest caries treatment without discoloration on demineralized primary tooth enamel.

• Verwenden

  In pesticides; in soldering flux; etching glass.

• synthetische

  By reacting crude quartz with ammonium fluoride or ammonium hydrodifluoride or a mixture thereof in an aqueous medium when heated from 50 ° to 110 ° C. to form ammonium hexafluorosilicate, separating it from unreacted quartz and insoluble impurities by known methods (filtration or centrifugation) and subsequent concentration and cooling of the mother liquor for crystallization of Ammonium hexafluorosilicate.

• Allgemeine Beschreibung

  A white crystalline solid. Noncombustible. Corrodes aluminum. Used as a disinfectant, in etching glass, metal casting, and electroplating.

• Air & Water Reaktionen

  Water soluble.

• Reaktivität anzeigen

  Salts, basic, such as Ammonium hexafluorosilicate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.

• Hazard

  Very toxic; fatal.

• Health Hazard

  Inhalation of dust can cause pulmonary irritation and can be fatal in some cases. Ingestion may be fatal. Contact with dust causes irritation of eyes and irritation or ulceration of skin.

• Brandgefahr

  Special Hazards of Combustion Products: Toxic and irritating hydrogen fluoride, silicon tetrafluoride, and oxides of nitrogen may form in fires.

• Flammability and Explosibility

  Not classified

• mögliche Exposition

  This material is used as a pesticide and miticide, wood preservative, soldering flux; light metal casting; and in the etching of glass.

• Versand/Shipping

  UN2856 Fluorosilicates, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

• läuterung methode

  Crystallise the salt from water (2mL/g). After 3 recrystallisations, the Technical grade salt has Li, Na, K and Fe at 0.3, 0.2, 0.1 and 1.0 ppm respectively.

• Inkompatibilitäten

  Aqueous solution is highly corrosive. Contact with acids reacts to form hydrogen fluoride, which is a highly corrosive and forms a toxic gas. Corrosive to aluminum. 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. Ammonium fluorosilicate reacts with water to form hydrofluoric acid, a source of fluoride ions. Unlike other halide ions, the fluoride ion is highly reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass. Hydrofluoric acid can cause severe chemical burns and is one of the few materials that can etch glass. It is also a toxic gas in its anhydrous form.

• 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. Incineration.

Ammonium hexafluorosilicate Upstream-Materialien And Downstream Produkte

Hexafluorosilikate, Ammonium-Salz Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(251)Suppliers

16919-19-0, Ammonium hexafluorosilicate Verwandte Suche: