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 are prepared through the precipitation method using the double decomposition reaction. In precipitation method two aqueous and soluble solutions are mixed to form the precipitation of an insoluble salt.