...part, and then the quantitative relation of silica to iron plus magnesium should be ascertained. It must also be borne in mind that any other very soluble...necessary to remove or estimate this silica, or else .to discrimio Gazz. chlm. itaL, vol. 6, 1876, p. 301. 6Am. Jour. Scl., 4th ser., vol. 2, 1896, p. 142....

...DETERMINATION OF SOLUBLE SILICA. Very often in treatment by acids silica is separated in gelatinous ar granular form mixed with the unattacked minerals,...necessary to remove or estimate this silica, or else to discrimia Qaiz. chin. itaL, voL 5, 1876, p. 301. &Am. Jour. 8cU, tthsei.,v<A.11Y»»,'$-Ve.nate between...

...application than the particular case for which it was first used. It is well worth further study. ESTIMATION OF SOLUBLE SILICA. Very often in treatment by acids...becomes necessary to remove or estimate this silica, or el«o to discriminate between soluble and insoluble silica already existing together. Usually a boiling...

...wider application than the particular case for which it was first used. It is well worth further study. Very often in treatment by acids silica is separated...found advocates. G. Lunge and C. Millberg * have- shown conclusively that quartz is not nearly so insoluble in solutions of the caustic alkalies as has...

...wider application than the particular case for which it was first used. It is well worth further study. Very often in treatment by acids silica is separated...alkalies have found advocates. G. Lunge and C. Millberg 1 have shown conclusively that quartz is not nearly so insoluble in solutions of the caustic alkalies...