Liberates CO2
Effervescent
Citric and tartaric acid and sodium bicarbonate
Efflorescent
Release moisture
Copper and calcium sulfate and sodium carbonate
Mix and dissolve
Eutectic
Camphor+menthol and EMLA (prilocaine and lidocaine)
Absorb moisture from air and not dissolve
Hygroscopic
Sodium chloride
Absorb moisture and dissolve
Deliquescent
Sodium and potassium hydroxide and ammonium chloride
Structures
Sodium chloride
Cubic
Structures
Sucrose
Monoclinic
Structures
Boric acid
Triclinic
Structures
Urea
Tetragonal
Structures
Iodoform
Hexagonal
Structures
Iodine
Rhombic