A corrosive salt substance used to etch copper and brass and often used to bring out the pattern in damascus steel. Used as a liquid and cut with distilled water.
An iron salt commonly used as a coagulant. Chemical formula is FeCl3.
An iron salt used as a coagulant in water treatment. The iron has a valence of +3.1.
A compound used as an early form of etchant chemistry used today to chemically mill parts. Also used in water treatment applications.
FeCl3 • 6H2O. A chemical substance used to etch coppergravure plates.