The book A Manual of Practical Assaying was written by author H Van F Howard Van Fleet Furman Here you can read free online of A Manual of Practical Assaying book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Manual of Practical Assaying a good or bad book?
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After agitation place the flask in a dark place (a box with several holes in the top in which to introduce the flasks is convenient), and allow the precipitate to settle. Repeat the agitation, if necessary, until the solution settles clear, and then add I cc. Of the decime-salt (prepared for this purpose by drawing off 25 cc. Of the normal- 242 A MANUAL OF PRACTICAL ASSAYING. salt solution, and diluting with 225 cc. Of distilled water) solu- tion from a burette. Should a precipitate appear, agi...tate and allow to settle as before, and repeat the addition of decime-salt solution until a precipitate fails to appear. The solution should be added slowly at first, and the addition stopped as soon as a precipitate fails to appear. The reading of the burette is now noted, the contents of the flask agitated and allowed to settle. The decime solution of silver nitrate is now added from a burette, adding not more than I cc. At a time. This addition is continued, agitating, and allowing the contents of the flask to settle after each addition until the silver nitrate no longer produces a precipitate, when the reading of the burette is noted.
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