The Collaborative International Dictionary
Turnbull's blue
Turnbull's blue \Turn"bull's blue`\ (Chem.) The double cyanide of ferrous and ferric iron, a dark blue amorphous substance having a coppery luster, used in dyeing, calico printing, etc. Cf. Prussian blue, under Prussian.
Usage examples of "turnbull's blue".
Shall begin by investigating things like Prussian and Turnbull's blue--iron and cyanogen salts.
Shall begin by investigating things like Prussian and Turnbull's blue-iron and cyanogen salts.