Page 6 - APPLIED INORGANIC ANALYSIS

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«. CONTENTS
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III. WEIGHING THE SAMPLE. 49
IV, 'THE CHOICE OF THE METHOD OF ANALY8I8.0»·+9889889...9...... 50
V. 'THE PREPARATION OF THE SOLUTION FOR THE ANALYSIS. 52
VI. PRECIPITATION BY THE SULPHIDE ION... 53
A. Precipitation in " Strong" Acid (pH <1) Solution. 53
B. Precipitation in " Dilute" Acid (pH 2-S) Solution.. 55
C. Precipitation in Nearly Neutral (pH 5-0) Solution....·..., 56
D. Precipitation in Alkaline Solution (pH>7)... 56
E. Precipitation in a Solution Containing a Com pier Anion... 57
, Precipitation by Ammonium Sulphide... 59
VI. OUTLINES OF SEPARATIONS OF ELEMENTS IN THE PRECIPITATE PRODUCED BY
HYDROGEN SULPHIDE IN STRONG ACID SOLUTION. 62
A. Separation of the Copper and Arsenic Groups 62
B. Separations within the Copper Group. 63
C. Separations within the Arsenic Group 65
VIII. PRECIPITATION BY REGULATION OF THE HYDROGEN ION CONCENTRATION
OF THE SOLUTION... 08
A. Precipitation by Ammonium Hydro.ride 69
B. Precipitation by the Basie Acetate Method. 70
C. Precipitation by the Sodium Succinate Method.. 74
D. Precipitation by a Suspension of Carbonate or Oride. 74
E. Precipitation by Iodates or Bromates. 70
, Precipitation by Sodium Hydro.ride 76
IX. OUTLINES OF SEPARATIONS OF ELEMENTS IN THE PRECIPITATE PRODUCED BY
AMMONIUM HYDROXIDE, SODIUM ACETATE OR SODIUM SUCCINATE. 77
A. Common Separations....»·· 79
B. Miscellaneous Separations.... 83
C. Etended Analysis of the Amomoia Precipitate 84
X. FLrT1ON... 89
XI. THE WASHING OF PRECIPITATES. 94
XII. 'TE DRYING AND IGNITING O PRECIPITATES. .»· 96

CHAPTER V.-SPECIAL OPERATIONS. 100
I. REDUCTION IN THE JONES REDOCTOR....· 100
II. REDUCTION BY MEANS OF AMAL6AMS...»·.. 103
III. ELECTROLYSIS WITH A MERCURY CTHODE.. 105
IV. EXTRACTION TY ETHER •..· 106
V, PRECIPITATION BY CUPFERRON..»..... 109
VI. PRECIPITATION Y PHENYLIIYDRAZINE. 113
VII. PRECIPITATION RY 8-HYDROXYQUINOLINE. 114