Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 472
on of prussiate of potash.The color called Prussian blue is thusproduced. Or a solution of ferrous salt is made.The stone is placed at first into a solutionof prussiate of potash, chloric gas is con-ducted upon it, whereby potassium ferrid-cyanide is produced, which, when thestone has been… … IVJericlen gritannia Qo. MANUFACTURERS OF STANDARD ELECTRO, SILVER AND GOLD
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.