... potassa, sulphate of potash, muriates, arsenic, lime, and silica. The sulphate of potash is deter- mined by ... the lime by the oxalic acid test, the silica by its insolubility in water, and iron by ...

... or combination of protocar- bonate and sesquioxide with silica and alumina forming clay-ironstone. In this country ... subject to be adulterated with lime, alumina, and silica. It is often mixed with carbonate of magnesia, ...

... dissolving the finely-powdered glass in muriatic acid. Silica, or brick-dust, with which it may be ... If the oxide of antimony is mixed with silica, it will not be entire- ly soluble in ...

... alkaline, the latter earthy salts. A portion of silica has usually been considered as present in urine, ... little phosphate of magnesia, and sometimes a little silica; but it contains neither iron, alkali, nor carbonate ...

... by brassfounders. III. (Hessian.) Clay, (containing 10$ of silica and a little of the oxides of iron ... Acid. The same as Fluoric Acid, omit- ting Silica. Baryta. Acids—Sulphuric, Oxalic, Succinic, Fluoric, Phosphoric, Mucic, ...

... 0-27 Oxide of Iron, - -....." 2-22 Manganese, Silica, &c,.....- " 0-44 Loss,.......- 0-13 Total, 7- ... Sodium,......" 1-53 Chloride of Magnesium,....." u'75 Silica,........." °-14 Loss,.......- - " °'19 Total, 8-5 [Marcet. 332 ...

... nourish- ment also of potash, soda, lime, magnesia, silica, alumina, iron, sulphuric acid, phosphoric acid, etc. This ... lime, potash, soda, phosphoric acid, sulphuric acid, chlorine, silica, magnesia, and peroxide of iron, soils entirely destitute ...

... effects thus produced. PORCELAIN MATERIALS. The infusible earths Silica and Alumina, and the fusible alkalies Potassa and ... lain is made from the purest compounds of silica, alumina, and potassa, colored by metallic Gold and ...

... ores are first roasted in air, then with silica fluxes and carbon, and finally a substance called ... iron ; emery contains oxide of iron and also silica. INORGANIC CHEMISTRY. 193 metal electrolytically;* another to reduce ...

... of Porcelain Teeth. General Considerations, .... ................1088 Porcelain Materials : Silica, Feldspar, Kaolin : Coloring Materials, . . . 1089 Formulas for Body ... effects thus produced. PORCELAIN MATERIALS. The infusible earths, Silica and Alumina, and the fusible alkalies, Potassa and ...