Element #37 (LN2):
  Name: Liquid Nitrogen
  Very cold, disappears whenever it touches anything warmer.
  Also ignites C-5.
  
Element #51 (NICE):
  Name: Nitrogen Ice
  Nitrogen Ice. Very cold, will melt into LN2 when heated only slightly.
  
Element #147 (EMBR):
  Name: Ember/Spark
  An element used for graphical effects such as BOMB explosions and fireworks (FWRK and FIRW).
  Most elements cause any EMBR that touches them to disappear.