아질산스트론튬

개요Strontium nitrite has the formula of Sr(NO2)2 and the molecular weight of 179.6311 g/mol. It can be made by the usual double decomposition reaction of sodium nitrite and SrCl2. It forms a tetrahydrate which is isomorphous with the calcium and barium salts: Na2NO2 (aq) + SrCl2 SrNO2 (aq) + 2NaCl (aq)If strontium nitrite is added to a mixture of magnesium– strontium nitrate, normally used in pyrotechnic formulations, it prevents aging of the nitrate mixture in the presence of water until usage in fireworks. Studies by isothermal microcalorimetry show that the addition of strontium nitrite to a 50% magnesium–50% strontium nitrate composition eliminated the induction reaction normally observed in closed ampoule studies in air at 50 C and relative humidity in the range 65–69%.