Plastic waste breaks down over time into microplastics (<0.1 μm). Microplastics smaller than 20 μm cannot be removed in currently operating water treatment plants and must be agglomerated to a larger ...

Prussian blue (PB) is one of the oldest known synthetic chemicals. It is used as a dye in paints and was a key component of blueprints. New research shows that a chemical derivative of PB can be ...

The pigment Prussian blue consists of iron cations, cyanide anions, and water. The empirical formula—minus the water of crystallization—is Fe 7 (CN) 18. This seems odd with respect to the iron ...