"Ferrous" Quotes from Famous Books
... silver and 5,000 pounds of gold were obtained twelve pounds of platinum, two pounds of palladium, and several pounds of selenium. To obtain these the gold is first precipitated from the solution by ferrous chloride, all the other metals by iron turnings. The precipitate is first submitted to the action of ferric chloride to dissolve the copper, and the residue is fused with charcoal and soda to separate the selenium. The regulus from this operation is dissolved, ... — The Galaxy, Volume 23, No. 2, February, 1877 • Various
... is both a delicate and disagreeable operation: none of the agents recommended to substitute the sulphydrates have proved available. Of these the author mentions ferrous chloride (6), ferrous chloride in alcohol (7), formaldehyde (8), sulphocarbonates. The different sulphydrates (9) have very different effects. The calcium compound tends to harden and weaken the thread. The ... — Researches on Cellulose - 1895-1900 • C. F. Cross |