text: Alkali metal nitrates are relatively low melting and thermally stable. The least stable, lithium nitrate| (m.p. 255 °C) decomposes only at 474 °C. At the other extreme, cesium nitrate melts at 414 °C and decomposes at 584 °C.
  *60:40 mixture of sodium nitrate and potassium nitrate is a liquid between 260-550 °C. It has a heat of fusion of 161 J/g, and a heat capacity of 1.53 J/(g·K).
  *1:1 mixture :, m.p. 125 °C.
  *40:7:53 ::, m. p. 142 °C, stable to 600 °C.