Formaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.ormaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.
Actually most of the salts are insoluble in water. Not all the salts include chloride!!! And of those witch contain chloride, silver, led and mercury salts are insoluble!!! chemically speaking, not all salts are soluble in a particular solvent under normal conditions..
Insoluble Salts. An insoluble salt is a salt that not dissolves in water at room temperature. Insoluble salts in water include: (a) all carbonates except ammonium carbonate [(NH4)2CO3], sodium carbonate (Na2CO3) and potassium carbonate (K2CO3).(b) all oxides except calsium oxide (CaO), barium oxide (BaO), sodium oxide (Na2O) and potassium oxide (K2O).nsoluble salts in water include: (a) all carbonates except ammonium carbonate [(NH4)2CO3], sodium carbonate (Na2CO3) and potassium carbonate (K2CO3). (b) all oxides except calsium oxide (CaO), barium oxide (BaO), sodium oxide (Na2O) and potassium oxide (K2O).