... Sulphuric acid may be precipitated and weighed as barium sulphate, phosphoric acid may be precipitated by magnesia mixture ... solution by silver nitrate, and weighing the precipitated barium sulphate or silver chloride. Ten c.c. of normal ...

... alter the surface tension of the finely divided barium sulphate particles by their colloidal action, so as to ... in vitro that such inert substances as kaolin, barium sulphate, agar or indifferent bacteria or precipitates may replace ...

... unaffected sul- phuric acid is thrown out as barium sulphate ; the barium salts of the ether-acids are ... is next saturated with barium carbonate and the barium sulphate removed by filtration. When the so- lution is ...

... baric chloride. Filter, wash, ignite, and weigh as barium sulphate, or estimate volu- metrically, as in § 76. Sulphuretted ... titra- tion, 240 Filter, Beale’s, 18 Filter for barium sulphate, Wilden- stein’s, 358 Flasks, measuring, 16 Flasks, verification ...

... of the sphenoid sinuses, with a suspension of barium sulphate. J. Radiol., Iowa City, 1921, ii, No. 2, ... n (M.). Quantitative Untersuchungen des Magnesium- Kalk-, und Barium- ... lation of sulphates to plant growth and composition. J. Agric. Research, ...

... chloride in excess, filtering out any precipitate of barium sulphate which may form (owing to the fact that ... water and getting another copious white precipitate of barium sulphate, owing to the conversion of the sulphurous into ...

... mixture of Prussian blue, chromate of lead, and barium sulphate. Subchloride of copper (cuprous chloride), Cu2Cl2 ( = 2 vols.), ... is usually associated with quartz (silica), heavy spar (barium sulphate), or fluor spar (calcium fluoride). Considerable quantities of ...

... barium nitrate to a solution of platinic sulphate. Barium sulphate and platinic nitrate are thus formed, and from ...

... mixed with barium carbonate gradually until effervescence ceases. Barium sulphate is precipitated also by any carbonate which may ... alkaline reaction. Prepared by double decomposition between quinine sulphate and barium chloride, or by dissolving the alkaloid in dilute ...

... are anglesite, or lead sulphate; bar- ite, or barium sulphate; and gypsum, or cal- cium sulphate. While there ...