An Introductory Course of Quantitative Chemical Analysis

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Henry Paul Talbot. An Introductory Course of Quantitative Chemical Analysis

An Introductory Course of Quantitative Chemical Analysis

Table of Contents

PREFACE

HENRY P. TALBOT

PART I. INTRODUCTION. SUBDIVISIONS OF ANALYTICAL CHEMISTRY

PART II. VOLUMETRIC ANALYSIS

GENERAL DISCUSSION BICHROMATE PROCESS FOR THE DETERMINATION OF IRON DETERMINATION OF IRON IN LIMONITE BY THE BICHROMATE PROCESS DETERMINATION OF CHROMIUM IN CHROME IRON ORE PERMANGANATE PROCESS FOR THE DETERMINATION OF IRON DETERMINATION OF IRON IN LIMONITE BY THE PERMANGANATE PROCESS DETERMINATION OF IRON IN LIMONITE BY THE ZIMMERMANN-REINHARDT PROCESS DETERMINATION OF THE OXIDIZING POWER OF PYROLUSITE IODIMETRY DETERMINATION OF COPPER IN ORES DETERMINATION OF ANTIMONY IN STIBNITE CHLORIMETRY DETERMINATION OF AVAILABLE CHLORINE IN BLEACHING POWDER

DETERMINATION OF SILVER BY THE THIOCYANATE PROCESS. PART III. GRAVIMETRIC ANALYSIS

PART IV. STOICHIOMETRY. SOLUTIONS OF TYPICAL PROBLEMS PROBLEMS. APPENDIX. ELECTROLYTIC DISSOCIATION THEORY FOLDING OF A FILTER PAPER SAMPLE NOTEBOOK PAGES STRENGTH OF REAGENTS DENSITIES AND VOLUMES OF WATER CORRECTIONS FOR CHANGE OF TEMPERATURE OF STANDARD SOLUTIONS ATOMIC WEIGHTS LOGARITHM TABLES. QUANTITATIVE CHEMICAL ANALYSIS

PART I

INTRODUCTION. SUBDIVISIONS OF ANALYTICAL CHEMISTRY

GENERAL DIRECTIONS

ACCURACY AND ECONOMY OF TIME

NOTEBOOKS

REAGENTS

WASH-BOTTLES

TRANSFER OF LIQUIDS

EVAPORATION OF LIQUIDS

PART II

VOLUMETRIC ANALYSIS

MEASURING INSTRUMENTS. THE ANALYTICAL BALANCE

WEIGHTS

BURETTES

PREPARATION OF A BURETTE FOR USE

READING OF A BURETTE

CALIBRATION OF GLASS MEASURING DEVICES

CALIBRATION OF THE BURETTES

PIPETTES

CALIBRATION OF PIPETTES

FLASKS

GRADUATION OF FLASKS

GENERAL DIRECTIONS FOR VOLUMETRIC ANALYSES

STANDARD SOLUTIONS

NORMAL SOLUTIONS

I. NEUTRALIZATION METHODS

ALKALIMETRY AND ACIDIMETRY. GENERAL DISCUSSION

INDICATORS

BEHAVIOR OF ORGANIC INDICATORS

PREPARATION OF INDICATOR SOLUTIONS

PREPARATION OF STANDARD SOLUTIONS

COMPARISON OF ACID AND ALKALI SOLUTIONS

STANDARDIZATION OF HYDROCHLORIC ACID

SELECTION AND PREPARATION OF STANDARD

STANDARDIZATION

DETERMINATION OF THE TOTAL ALKALINE STRENGTH OF SODA ASH

DETERMINATION OF THE ACID STRENGTH OF OXALIC ACID

II. OXIDATION PROCESSES

GENERAL DISCUSSION

BICHROMATE PROCESS FOR THE DETERMINATION OF IRON

NORMAL SOLUTIONS OF OXIDIZING OR REDUCING AGENTS

PREPARATION OF SOLUTIONS

INDICATOR SOLUTION

COMPARISON OF OXIDIZING AND REDUCING SOLUTIONS

STANDARDIZATION OF POTASSIUM BICHROMATE SOLUTIONS

STANDARDIZATION

DETERMINATION OF IRON IN LIMONITE

DETERMINATION OF CHROMIUM IN CHROME IRON ORE

PERMANGANATE PROCESS FOR THE DETERMINATION OF IRON

PREPARATION OF A STANDARD SOLUTION

COMPARISON OF PERMANGANATE AND FERROUS SOLUTIONS

STANDARDIZATION OF A POTASSIUM PERMANGANATE SOLUTION

STANDARDIZATION

DETERMINATION OF IRON IN LIMONITE

DETERMINATION OF THE OXIDIZING POWER OF PYROLUSITE

INDIRECT OXIDATION

IODIMETRY

NORMAL SOLUTIONS OF IODINE AND SODIUM THIOSULPHATE

PREPARATION OF STANDARD SOLUTIONS

INDICATOR SOLUTION

COMPARISON OF IODINE AND THIOSULPHATE SOLUTIONS

STANDARDIZATION OF SOLUTIONS

DETERMINATION OF COPPER IN ORES

DETERMINATION OF ANTIMONY IN STIBNITE

CHLORIMETRY

DETERMINATION OF THE AVAILABLE CHLORINE IN BLEACHING POWDER

III. PRECIPITATION METHODS

DETERMINATION OF SILVER BY THE THIOCYANATE PROCESS

STANDARDIZATION

DETERMINATION OF SILVER IN COIN

PART III

GRAVIMETRIC ANALYSIS. GENERAL DIRECTIONS

PRECIPITATION

FUNNELS AND FILTERS

FILTRATION AND WASHING OF PRECIPITATES

DESICCATORS

CRUCIBLES

PREPARATION OF CRUCIBLES FOR USE

IGNITION OF PRECIPITATES

DETERMINATION OF CHLORINE IN SODIUM CHLORIDE

[ILLUSTRATION: FIG. 2]

DETERMINATION OF IRON AND OF SULPHUR IN FERROUS AMMONIUM SULPHATE,

FESO_{4}.(NH_{4}){2}SO{4}.6H_{2}O. DETERMINATION OF IRON

DETERMINATION OF SULPHUR

DETERMINATION OF SULPHUR IN BARIUM SULPHATE

DETERMINATION OF PHOSPHORIC ANHYDRIDE IN APATITE

PRECIPITATION OF AMMONIUM PHOSPHOMOLYBDATE

PRECIPITATION OF MAGNESIUM AMMONIUM PHOSPHATE

REPRECIPITATION AND IGNITION OF MAGNESIUM AMMONIUM PHOSPHATE

ANALYSIS OF LIMESTONE

DETERMINATION OF MOISTURE

DETERMINATION OF THE INSOLUBLE MATTER AND SILICA

DETERMINATION OF FERRIC OXIDE AND ALUMINIUM OXIDE (WITH MANGANESE)

DETERMINATION OF CALCIUM

DETERMINATION OF MAGNESIUM

DETERMINATION OF CARBON DIOXIDE

DETERMINATION OF LEAD, COPPER, IRON, AND ZINC IN BRASS

ELECTROLYTIC SEPARATIONS

DETERMINATION OF COPPER AND LEAD

DETERMINATION OF IRON

DETERMINATION OF ZINC

DETERMINATION OF SILICA IN SILICATES

PREPARATION OF THE SAMPLE

FUSION AND SOLUTION

DEHYDRATION AND FILTRATION

IGNITION AND TESTING OF SILICA

PART IV

STOICHIOMETRY

PROBLEMS

VOLUMETRIC ANALYSIS

GRAVIMETRIC ANALYSIS

APPENDIX

ELECTROLYTIC DISSOCIATION THEORY

POTENTIAL SERIES OF THE METALS

THE FOLDING OF A FILTER PAPER

!SAMPLE PAGES FOR LABORATORY RECORDS!

STRENGTH OF REAGENTS

DENSITIES AND VOLUMES OF WATER AT TEMPERATURES FROM 15–30°C

CORRECTIONS FOR CHANGE OF TEMPERATURE OF STANDARD SOLUTIONS

INTERNATIONAL ATOMIC WEIGHTS

INDEX

Отрывок из книги

Henry Paul Talbot

With Explanatory Notes

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The object to be weighed should be placed on the left-hand balance pan and the weights upon the right-hand pan. Every substance which could attack the metal of the balance pan should be weighed upon a watch-glass, and all objects must be dry and cold. A warm body gives rise to air currents which vitiate the accuracy of the weighing.

The weights should be applied in the order in which they occur in the weight-box (not at haphazard), beginning with the largest weight which is apparently required. After a weight has been placed upon the pan the beam should be lowered upon its knife-edges, and, if necessary, the pan-arrests depressed. The movement of the pointer will then indicate whether the weight applied is too great or too small. When the weight has been ascertained, by the successive addition of small weights, to the nearest 5 or 10 milligrams, the weighing is completed by the use of the rider. The correct weight is that which causes the pointer to swing an equal number of divisions to the right and left of the zero-point, when the pointer traverses not less than five divisions on either side.

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