4. chemicals used in making artificial rain
4.1.Chemical category evolve heat or high temperature. (Exothermic chemical) are now used to make artificial rain in the country, Thai.Type 3 is
4.1.1. Calcium carbonate (calcium carbide; cac2)
4.1.2. Calcium chloride (. calcium chloride; cacl2)
4.1.3. calcium oxide (calcium oxide;cao)
4.2. category chemicals absorb heat or low temperature. At present, there are constant (Endothermic chemical) is used in making artificial rain is a type 3
4.2.1. urea (Urea; Co () NH2) 2)
4.2.2. dry ice (Dry ice Co2; (s))
4.2.3. ammonia Chennai concentrate (NH4NO3; Ammoniumnitrate)
4.3.chemicals that make the moisture absorption, such as salt