Title

Crystallization of Saltpetre

Caption

Crystallization of Saltpetre (Nitre, Potassium Nitrate, or KN03, 1574. [1683]. Saltpetre is the principal ingredient in gunpowder, and is still used in the preservation of some foods. In medicine it was used internally as a diuretic, but now is only used externally for a number of conditions, such as asthma. From 1683 English edition of "Beschreibung allerfurnemisten mineralischen Ertzt", Lazarus Ercker, (Prague, 1574). Copperplate engraving.

Info+

Photos12.com - Ann Ronan Picture Library

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP07104_460001059

License type

Rights managed

Available size

33,0Mb (2,6Mb) / 10,9in x 11,8in / 3255 x 3543 (300dpi)