"Alumina" Quotes from Famous Books
 ... in at the same time. The operation is finished when all the sodium sulphide has been converted into normal sodium carbonate, partly also into acid sodium carbonate (bicarbonate) NaHCO3; at the same time a precipitate is formed, consisting of ferrous sulphide, alumina and silica, which is removed by another settling tank, and the clear liquor is now ready either for boiling down in a "fishing-pan'' for the manufacture of white soda-ash, or for the process ...
— Project Gutenberg Encyclopedia
... and molecular and percentage composition, of the different phosphates 398 II. Reactions of sulphuric acid and phosphate of lime 398 III. Table for conversion of soluble phosphate into insoluble phosphate 399 IV. Action of iron and alumina in causing reversion 399 V. Relative trade values of phosphoric acid in ...
— Manures and the principles of manuring • Charles Morton Aikman
... porcelain dish containing a little distilled water and an excess of chemically pure hydrochloric acid. In this solution are dissolved the carbonates, carbonate of lime, carbonate of magnesia, a little of sulphate of alumina, as well as metallic oxides, while silicate of magnesia, silicic acid, sulphate of lime (gypsum) remain undissolved. The substance is heated until the water and excess of free hydrochloric acid have been driven off; it is then ...
— Scientific American Supplement, No. 821, Sep. 26, 1891 • Various
... the 8th of May, the engineer began his manipulations. These shistose pyrites being composed principally of coal, flint, alumina, and sulphuret of iron—the latter in excess—it was necessary to separate the sulphuret of iron, and transform it into sulphate as rapidly as possible. The sulphate obtained, the sulphuric acid could ...
— The Mysterious Island • Jules Verne
... reasons just given, the acetate or tartrate of iron is preferable to the sulphate; and the acetate or tartrate of alumina to alum. For reds, yellows, green, and pinks, aluminous mordants are to be used. For blacks, browns, puces, and violets, the acetate or tartrate of iron must be employed. For scarlets, use a tin mordant, made by dissolving in strong nitric acid one-eighth of its weight of sal-ammoniac, ...
— Enquire Within Upon Everything - The Great Victorian Domestic Standby • Anonymous
... containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, ...
— Mother's Remedies - Over One Thousand Tried and Tested Remedies from Mothers - of the United States and Canada • T. J. Ritter
... eaten not only in Java, but also in Sumatra, New Caledonia, Siberia, Guiana, Terra del Fuego, etc., are essentially composed of silex, alumina, and water in variable proportions, and are colored with various metallic oxides. They are in amorphous masses, are unctuous to the touch, stick to the tongue, and form a fine, smooth paste with water. The natives of Java and Sumatra prepare them in a peculiar ...
— Scientific American Supplement, No. 595, May 28, 1887 • Various
... of feldspar, consisting approximately of silica, 45, alumina, 40, water, 15. It was used in electric candles of the Jablochkoff type as a constituent of the insulating layer or colombin. Later it was abandoned for another substance, as it was found that it melted and acted as ...
— The Standard Electrical Dictionary - A Popular Dictionary of Words and Terms Used in the Practice - of Electrical Engineering • T. O'Conor Slone
... ordinarily of a reddish ferruginous or brick-dust colour, sometimes deepened into dark red. Apparently the special character which distinguishes laterite from other forms of red-coloured weathering is the presence of hydrous oxide of alumina in varying proportions. . . . 'Though there is still a great deal of uncertainty about the way in which laterite was formed, the facts which are known of its distribution seem to show that it is a distinct form of weathering, which is confined ...
— Rambles and Recollections of an Indian Official • William Sleeman
... other terrene whites, under equivocal names, among which are Morat or Modan white, Spanish white, Troys or Troy white, Rouen white, China white, and Satin white; the latter being a sulphate of lime and alumina, which dries with a glossy surface. The common oyster-shell contains a soft white in its thick part, and there is the white of egg-shells. There is, too, an endless variety of native earths, in ...
— Field's Chromatography - or Treatise on Colours and Pigments as Used by Artists • George Field
... of any kind impregnated with sulphate of iron (copperas,) and sulphate of alumina, ...
— Peat and its Uses as Fertilizer and Fuel • Samuel William Johnson
... the blue was either cobalt or oxide of copper; the white was oxide of tin. Oxide of load was added in some cases, not as a coloring matter, but as a flux, to facilitate the fusion of the glaze. In other cases the pigment used was covered with a vitreous coat of an alkaline silicate of alumina. ...
— The Seven Great Monarchies Of The Ancient Eastern World, Vol 4. (of 7): Babylon • George Rawlinson
... removal of this a qualitative analysis was made of the residual powder. Another gramme was also taken, without picking out the metallic iron, and was tested for chlorine and for phosphoric acid. The results of the qualitative analysis were that the stone contains silica, magnesia, a little alumina, oxide of iron and nickel, a little tin, an alloy of iron and nickel, phosphoric acid, and a trace of chlorine. These ingredients being determined, the plan for a quantitative analysis was laid out, and was duly executed by the usual and approved ...
— Scientific American Supplement, No. 530, February 27, 1886 • Various
... beds of loose sand are frequently met with, of which the grains consist entirely of silex, which term comprehends all purely siliceous minerals, as quartz and common flint. Quartz is silex in its purest form. Flint usually contains some admixture of alumina and oxide of iron. The siliceous grains in sand are usually rounded, as if by the action of running water. Sandstone is an aggregate of such grains, which often cohere together without any visible cement, but more commonly ...
— The Student's Elements of Geology • Sir Charles Lyell
... processes of metallurgy, chemistry and physics, better transportation, better organization of commercial life, and many other factors, tend to bring new earth materials into use,—and, therefore, into the field of economic geology. A comparatively few years ago alumina, one of the most common and abundant substances of the earth's crust, was in no general demand except for very limited use as an ornament. Little attention was paid to it by economic geologists as a commercial product; ...
— The Economic Aspect of Geology • C. K. Leith
... the turquoise, in that it is the only rare gem essentially containing a great proportion of water, which renders it easily liable to destruction, as we shall see later. It is a combination of alumina, water, and phosphoric acid, and is also unique in being the only known valuable stone ...
— The Chemistry, Properties and Tests of Precious Stones • John Mastin |
