"Ferrous" Quotes from Famous Books
 ... when they are subjected to the strongly reducing action of a smoky atmosphere, which is produced by throwing small bituminous coal upon the fire-mouths and damping down the admission of air. The smoke thus produced reduces the red ferric oxide to blue-green ferrous oxide, or to metallic iron, which combines with the silica present to form a fusible ferrous silicate. This fusible "slag" partly combines with the other silicates present, and partly fills up the pores, and so produces a vitreous impermeable layer varying in thickness according to the duration ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 - "Brescia" to "Bulgaria" • Various
... Examine and burn a piece of magnesium ribbon, noting the white compound of magnesium oxide which is formed. Iron. Examine pieces of the metal and also some of its compounds, as ferrous sulphate, ferric chloride, and ferric oxide or iron rust. Sodium. Drop a piece of the metal on water and observe results. Sodium decomposes water. It has to be kept under some liquid, such as kerosene, which contains no oxygen. (It should not be touched except with the fingers wet with kerosene.) ...
— Physiology and Hygiene for Secondary Schools • Francis M. Walters, A.M.
... to denitration which 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 ammonia compound requires great care ...
— Researches on Cellulose - 1895-1900 • C. F. Cross
... end. One understands that the blue color of the ground is more or less intense according to time of insolation, for the chemical actions between the reduced and the non-reduced iron salts is so much more complete as the salts acted on are more or less deoxidized, that is, reduced to ferrous salts; and that to obtain the maximum of effect, which, therefore, depends on the allowable time of exposure, the drawing ink should be opaque and non-actinic as far as possible, because when, on testing, the lines are tinted the exposure ...
— Photographic Reproduction Processes • P.C. Duchochois |
