text: Salt hydrates (MN·nHO)
  *Advantages
  ** High volumetric latent heat storage capacity
  ** Availability and low cost
  ** Sharp melting point
  ** High thermal conductivity
  ** High heat of fusion
  ** Non-flammable
  ** Sustainability
  * Disadvantages
  ** Difficult to prevent incongruent melting and phase separation upon cycling, which can cause a significant loss in latent heat enthalpy.
  ** Can be corrosive to many other materials, such as metals. This can be overcome by only using specific metal-PCM pairings or encapsulation in small quantities in non-reactive plastic.
  ** Change of volume is very high in some mixtures
  ** Super cooling can be a problem in solid–liquid transition, necessitating the use of nucleating agents which may become inoperative after repeated cycling