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Strontiumnitrat

Strontiumnitrat
(({navn))}
Identifikatorer
CAS-nummer10042-76-9
Kjemiske egenskaper
FormelSr(NO3)2
Molar masse211,63 g/mol
UtseendeHvitt krystallisk stoff
Tetthet2986 kg/m3
Smeltepunkt570 °C
Kokepunkt645 °C
Løselighet71 g/100 ml (vann 18 °C)
Farer
HovedfarerIrriterende.
Relatert
Andre anionerStrontium sulfat, Strontium klorid
Andre kationerBeryllium nitrat, Magnesium nitrat, Kalsium nitrat, Barium nitrat

Strontiumnitrat (Sr(NO3)2) er et strontium – salpetersyresalt. Det har bruksområder som oksidasjonsmiddel og farge i fyrverkeri.

Fremstilling

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Strontiumnitrat blir typisk produsert ved reaksjonen mellom salpetersyre og strontiumkarbonat.[1]

Bruksområder

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Som mange andre strontiumsalter, blir strontiumnitrat brukt for å fremstille kraftige røde flammer i fyrverkeri og i nødbluss. Hovedfordelen strontiumnitrat har overfor andre salter er det faktumet at det er et oksiderende stoff. Dette gir to bruksområder innen pyroteknikk. Løsninger med Sr(NO3)2 reagerer med svovelsyre ved å bunnfelle SrSO4, en av ingrediensene til fosfor strontiumsulfid.[1]

Helserisiko

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Hvis strontiumnitrat blir oppvarmet til punktet for selvødeleggelse så vil det produsere strontium oksid og vil avgi den giftige gassen nitrogendioksid.

Referanser

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  1. ^ a b Ward, R.; Osterheld, R. K.; Rosenstein, R. D. «Strontium Sulfide and Selenide Phosphors» Inorganic Syntheses McGraw-Hill: New York, 1950; Vol. 3, p. 11-23.
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Strontiumnitrat
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