Strontiumnitrat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H271：Kann Brand oder Explosion verursachen; starkes Oxidationsmittel.

  H318：Verursacht schwere Augenschäden.

• Sicherheit

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

  P220：Von Kleidung und anderen brennbaren Materialien fernhalten.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P283：Schwer entflammbare / flammhemmende Kleidung tragen.

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

  P306+P360：BEI KONTAKT MIT DER KLEIDUNG: Kontaminierte Kleidung und Haut sofort mit viel Wasser abwaschen und danach Kleidung ausziehen

Strontium nitrate Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
  R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
  R22:Gesundheitsschädlich beim Verschlucken.

• S-Sätze Betriebsanweisung:

  S17:Von brennbaren Stoffen fernhalten.
  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

• Beschreibung

  Strontium nitrate has the molecular formula of Sr(NO3)2 and the molecular weight of 211.6327 g/mol. Strontium nitrate is prepared by treating strontium carbonate with nitric acid. The solution is evaporated and crystallized:
  SrCO3 +HNO3 ? Sr(NO3)2 + CO2 +H2O
  Crystallization yields the tetrahydrate, Sr(NO3)2· 4H2O, which, on heating, melts at 31.3 °C in its own waters of hydration and then decomposes >100 °C to form the anhydrous nitrate. The anhydrate melts at 570 °C (It begins to decompose as low as 545 °C), is soluble in water (70.3 gm/100 ml at 20 °C) and is very slightly soluble in ethanol. These colorless crystals, or white powder, have a density of 2.986 g/cm³ and its CAS number is 10042-76-9. It is very soluble in water, as shown in Table 4.11 on the following page. Strontium nitrate apparently forms only the tetrahydrate when a solution is evaporated below 80°C. Otherwise it decomposes at higher solution temperatures to Sr(OH)2 and nitrogen oxides. The nitric acid concentration makes little difference in the hydrate produced, in contrast to other alkaline earths like Ca and Mg.

• Chemische Eigenschaften

  Strontium nitrate is a white crystalline solid

• Chemische Eigenschaften

  Colorless cubic crystals or white powder or granules; density 2.986 g/cm3; melts at 570°C; very soluble in water, 80 g/100 mL at 18°C; very slightly soluble in ethanol.
  The tetrahydrate constitutes colorless monoclinic crystals; density 2.20 g/cm3; loses all water of crystallization at 100°C; converts to strontium oxide, SrO at 1,100°C; very soluble in water, 60.4g/100 mL at 0°C, 206 g/100 mL at 100°C; soluble in liquid ammonia; very slightly soluble in ethanol and acetone.

• Physikalische Eigenschaften

  Colorless cubic crystals or white powder or granules; density 2.986 g/cm³; melts at 570°C; very soluble in water, 80 g/100 mL at 18°C; very slightly soluble in ethanol.
  The tetrahydrate constitutes colorless monoclinic crystals; density 2.20 g/cm³; loses all water of crystallization at 100°C; converts to strontium oxide, SrO at 1,100°C; very soluble in water, 60.4g/100 mL at 0°C, 206 g/100 mL at 100°C; soluble in liquid ammonia; very slightly soluble in ethanol and acetone.

• Verwenden

  Used in preparation of strontium standard solutions

• Verwenden

  Industrial uses of strontium nitrate are rather limited and have rather limited commercial value because the corresponding calcium and barium compounds serve the same purpose yet are cheaper. A few, however, have found application in industry and elsewhere. Strontium nitrate, Sr(NO3)2, and strontium chlorate,Sr(ClO3)2, are extremely volatile and impart a brilliant crimson color to flames; they are thus used in fireworks and similar displays.
  Recent clinical studies demonstrate that when strontium nitrate is applied to the facial skin, it significantly reduces skincare-induced burning, stinging and facial redness. These findings are very important to Rosacea sufferers, who report facial burning and flushing to topical skincare products and environmental insults such as wind, sun, heat and cold. This is the first compound that selectively blocks the irritationproducing nerve endings (type C nociceptors) that become activated when itching, burning and stinging occur from any cause. Glycolic acid removes the upper layer of old and dead skin cells, while encouraging the growth of younger, smoother and evenly pigmented looking skin. Strontium nitrate is a substance capable of inhibiting tingling sensations and irritations associated with peels containing glycolic acid. It reduces irritations, inflammations, and redness caused by glycolic acid peels.

• Verwenden

  Strontium nitrate [Sr(NO3)2], because of the bright red flame it produces when burned, is used in fireworks, matches, marine signals, and so forth.

• Verwenden

  Strontium nitrate is used in pyrotechnics, for producing marine and railroad signals, and in matches.

• Verwenden

  In pyrotechnics (red fire), signal lights, marine signals, railroad flares, matches.

• synthetische

  Strontium nitrate is prepared by treating strontium carbonate with nitric acid. The solution is evaporated and crystallized:
  SrCO3 + HNO3 → Sr(NO3)2 + CO2 + H2O
  Crystallization yields the tetrahydrate, Sr(NO3)2•4H2O, which on heating dehydrates to form the anhydrous nitrate.

• Trademarks

  Strotope (Bristol-Myers Squibb).

• Allgemeine Beschreibung

  A white crystalline solid. Noncombustible but accelerates burning of combustible materials. May explode if large quantities are involved in a fire or the combustible material is finely divided. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in pyrotechnics, in medicine, and to make other chemicals.

• Air & Water Reaktionen

  Soluble in water.

• Reaktivität anzeigen

  Mixtures of metal/nonmetal nitrates with alkyl esters may explode, owing to the formation of alkyl nitrates; mixtures a nitrate with phosphorus, tin (II) chloride, or other reducing agents may react explosively [Bretherick 1979 p. 108-109]. Special Hazards of Combustion Products: Yields toxic gaseous oxides of nitrogen when involved in fire.

• Health Hazard

  Dust is irritating to skin, eyes, and respiratory system.

• Flammability and Explosibility

  Non flammable

• Sicherheitsprofil

  Moderately toxic by ingestion and intraperitoneal routes. A powerful oxidizer. When heated to decomposition it emits toxic fumes of NOx.See also NITRATES and STRONTIUM COMPOUNDS.

• mögliche Exposition

  Strontium nitrate is used in matches, pyrotechnics, marine signals; and railroad flares.

• Versand/Shipping

  UN1507 Strontium nitrate, Hazard Class: 5.1; Labels: 5.1-Oxidizer.

• läuterung methode

  Crystallise it from hot water (0.5mL/g) by cooling to 0o.

• Inkompatibilitäten

  A strong oxidizer. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Violent reaction with reducing agents; combustibles, organics, or other readily oxidizable materials. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Strontium nitrate Upstream-Materialien And Downstream Produkte

10042-76-9, Strontium nitrate Verwandte Suche: