In dilute solutions, polyion complexes often do not precipitate but become colloidal particles in the same way as hydrophobic colloids of low molar mass salts, such as AgI. 10 Colloidal polyion ...

An international research team developed a method to fabricate perovskite thin films using a precursor known as phenethyl ammonium chloride (PEACl) in a simultaneous deposition and passivation step.

Commercial heat packs (containing iron and water, or supersaturated sodium acetate) and cold packs (various ammonium salts) can be used to show exo- and endothermicity. Heat packs that contain iron ...