Hall, Clare H. (Clare Hamilton), b. 1880 · New York, D. Van Nostrand company · leaf 12
CONSTITUENTS OF PAINTS 3 solution of hot H2SO4. Decant on filter, wash with hot water and HCl to dissolve any traces of calcium sulphate that may have precipitated, and determine barium as in B. I. Calculate BaS04 to BaCOg, and get CaCOg by difference. CARBON C. III. Determination of Carbon Dioxide. … Apparatus. — A is a bottle containing potash which serves to prevent any CO2 from the air enter- ing the apparatus, and through it air is drawn into the flask B, in which the carbonates are decomposed. B contains a stoppered funnel tube G, and is con- nected with the calcium chloride tube C, which…
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