Quantitative Metallurgical Analysis: Selected Methods for Chemical Analysis of Ores, Slags, Coal, Pig Iron and Steel (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Quantitative Metallurgical Analysis: Selected Methods for Chemical Analysis of Ores, Slags, Coal, Pig Iron and Steel

Process - Treat one gram of the pulverized ore in a covered casserole, under a hood, with 7 c.c. Of concentrated nitric acid and gently heat for a few moments; add five c.c. Of concentrated hydrochloric acid and again heat for a short time. Then add five c.c. Of concentrated sulphuric acid and evaporate until dense fumes of sulphuric anhydride are evolved. Cool; add 50 c.c. Of water and heat until the sulphates of copper, iron, etc, have dis solved. Filter into a small beaker, wash with a little hot water and endeavor to keep the volume of the filtrate down to about 50 or 60 c.c.

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