Elements of Chemistry: Theoretical and Practical, Volume 2

Front Cover
Longmans, Green, Reader & Dyer, 1877
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Contents

Differences between Physical and Chemical Properties
2
Characters of Chemical Attraction
9
Law of Definite Proportions
16
12a Hypothesis of Atomic Constitution of Matter
26
Boyles or Mariottes Law of Elasticity in Gases
27
Repulsion among the Particles of Gases
28
Application of the Law of Equivalent Proportions
34
18a Unit of Force
40
The AirPump 47 Adhesion
47
Cements
48
Pressure of the Atmosphere
49
Variations in Capillarity
50
Capillary Depression of Mercury
51
Importance of Capillary Actions
52
Cohesion of Liquids
53
Influence of Surface on Adhesion
54
Solution
55
Adhesion between Liquids
56
Cohesion Figures
57
Diffusion of LiquidsMode of Measuring
58
Laws of the Diffusion of Liquids
59
OsmoseEndosmosis and Exosmosis
60
The OsmometerConditions of Osmose
61
DialysisCrystalloidsColloids
62
The Pneumatic Trough
63
The Gas Holder
64
Adhesion of Gases to Solids
65
The Mercurial Trough 41 Correction of Gases for Pressure
66
Density of the Atmosphere at different heights
68
Cohesion 43 Measurement of Cohesion 44 Reunion of Divided Surfaces 45 Cohesion of Solids
69
45a Viscosity of Fluids
71
Influence of Heat on Cohesion
72
47
73
48
74
49
75
Capillarity 50 Variations in Capillarity
76
52
77
53
79
Influence of Surface on Adhesion
80
Solution
83
Adhesion between Liquids TABLE OF CONTENTS
85
Cohesion Figures
86
PARAGRAPH
90
Diffusion of LiquidsMode of Measuring it 59 Laws of the Diffusion of Liquids 60 OsmoseEndosmosis and Exosmosis
93
The OsmometerConditions of Osmose 62 DialysisCrystalloidsColloids
98
Flow of Liquids through Capillary Tubes
100
109
106
Desiccation of Gases
109
Diffusion of Gases
110
PARAGRAPH
112
Effusion of Gases
114
69
115
70
117
Passage of Gases through Diaphragms
118
70a Passage of Gases through Metallic Septa
120
Separation of Bodies by Cold or HeatCryohydrates
125
Crystallization
127
Modes of obtaining Crystals
128
Separation of Salts by the process of Crystallization 74 Sudden CrystallizationNuclei
131
Circumstances which modify Crystalline Form
132
Change of Volume in the act of Solidification 77 Dissection of Crystalline Masses
135
Structure of CrystalsCleavage
136
Goniometers
137
The Reflecting Goniometer
138
Symmetry of Crystalline Form 82 Classification of Crystals
139
Isomorphism 84 Chemical Bearings of Isomorphism
150
Dimorphism
153
Allotropy TABLE OF CONTENTS
155
CHAPTER IV
157
Influence of Light in producing Chemical Changes 89 Sources of Light CHAPTER IV
160
Illustration of Undulations from Sound
164
Transparency and Opacity
165
Law of the Diminution of Light by Distance 96 Rumfords Photometer 97 Reflection from Plane Surfaces 98 Reflection from Curved Surfaces
169
Refraction
170
Law of the Sines
171
IOI Refraction at Inclined Surfaces
173
Total Reflection
174
Wollastons Method of ascertaining Refractive Power 104 Prismatic Analysis of Light 105 Theory of ColoursAbsorption
178
105a Dispersive Power 1056 Sensitiveness to Heat I Theory of UndulationReflectionRefraction Prismatic Analysis
180
105c Influence of Chemical Composition on Refraction
181
Lines
182
xiii
185
TABLE OF CONTENTS xix
186
Spectrum AnalysisSpectroscope
193
107a Influence of TemperatureSpectra of Compounds
195
Projection of Spectral Lines on Screen 109 Kirchhoffs Theory of Fraunhofers Lines
200
PAGE
201
109a Spectroscopic Observations of the
204
Change in the Refrangibility of LightFluorescence
212
Change in the Refrangibility of LightFluorescence
214
127
215
Complex Nature of the Solar Spectrum 157281
216
PARAGRAPH
218
Measurement of the Magnetic Intensity of a
219
The
220
Length and Frequency of Undulations
221
Variation in the Intensity of the Earths Magnetism II Static Electricity
222
Simple Facts connected with Electricity
223
Two Kinds of Electricity
224
Insulators and Conductors
225
ElectroscopesCoulombsPeltiers ElectrometerThomsons Quadrant Electrometer
226
Electrical Hypotheses
227
Colours of thin Plates
229
Double Refraction
232
Polarization of Light by Double Refraction
235
Polarization by a Bundle of Plates
238
Colours in Plates cut perpendicular to the Axis
246
75
251
Activity of the Conducting Wire
252
Magnetic Polarization
253
The Galvanometer
254
Summary of the Effects produced by the Conducting Wire
255
the Crown of Cups
256
Electric Disturbance produced by Contact
257
Necessity of Chemical Action to produce Voltaic Action
258
Polarization and Transfer of the Elements of the Liquid
259
127d Influence of Light on Mixtures of Gases
260
Direction of the CurrentElectroChemical Order of the Ele ments Protection of Ships Sheathing
261
Circuits with One Metal and Two Liquids
262
General Summary
263
Groves Gas Battery
264
127p DaguerreotypeProduction of Images on Metallic Plates
271
PARAGRAPH 127t Photographic Spectra of the Elements
276
130
277
Extinction of Chemical Rays PAGE
278
Opposite Effects of the Red and Violet Ends of the Spectrum
279
127w Action of Solar Spectrum on Vegetable Colours 281 CHAPTER V
281
General Effects of Heat
282
Sources of HeatMechanical Equivalent of Heat 130 Nature of HeatMechanical Theory of Heat 281443
286
131
288
132
289
133
290
135
293
136
295
137
296
138
297
139
299
56
302
PyrometersDaniells Pyrometer 141 Comparative Range of Temperature 142 Pressure exerted by Expansion
303
Anomalous Expansion of Water
304
Correction of Volume of Gases for Temperature 145 Adjustment of Volume to Changes of Temperature 146 Process of taking Density of Gases
305
Adjustment of Volume to Changes of Temperature
306
105c Influence of Chemical Composition on Refraction 106 Fixed Lines in the SpectrumFraunhofers LinesBright
309
Process of taking Density of Gases ib 147 Determination of the Density of Vapours
310
148
315
Conduction in Solids Liquids and Gases
316
150
319
Conduction in Solids Liquids and Gases 150 Inequality in the Rate of Conduction in different Directions 151 Convection of Heat
321
152
322
Ventilation
323
Trade WindsLand and Seabreezes
324
154
325
Trade WindsLand and Seabreezes 154 Gulf Stream
326
Absorption of Heat 158 Connexion between Absorption and Radiation
328
Formation of
330
Law of Cooling by Radiation
332
161
333
Relative Absorbability of different kinds of Heat
334
163
336
Causes of Variation of Specific Heat
349
Variation in amount of Specific Heat according to Physical State
353
Specific Heat of Gases and Vapours
354
61
359
315
362
NO
363
63
367
Freezing Mixtures 365
368
PAGB 451
369
157
371
Regelation of
374
Evolution of Heat during Solidification 375
375
158
377
Disappearance of Heat during the formation of Vapour 179 Ebullition
378
Influence of Adhesion on the Boiling Point
379
Influence of Solids in Solution upon the Boiling Point 182 Influence of Pressure on the Boiling Point
381
Measurement of Heights by the Boiling Point
382
89 92 93 96 100
383
High Pressure Steam
384
Production of Cold by Vaporization
385
Measurement of the Latent Heat of Vapours
388
170
391
173
394
64
398
ib 67
399
Daltons Law of the Pressure of Vapours 191 Limit of Evaporation
400
Circumstances which influence Evaporation
401
AdhesionDiffusion of Liquids and Gases
402
Dew Point 194 Daniells Hygrometer
406
Wet Bulb Hygrometer
408
Liquefaction and Solidification of Gases
409
106
411
Pressure exerted by Condensed Gases
412
175
414
PAGE
416
Spheroidal State produced by Heat
419
Atomic Relations of Heat evolved in Chemical Combination
422
The Quantity of Heat developed in Chemical Action is definite 200 Early Experiments 201 Researches of Andrews 202 Researches of Favre and Silb...
423
Influence of Dimorphism
429
Heat Evolved during Decomposition 206 Combustion of Compounds
430
Indirect Methods of Estimating Calorific Equivalents
432
Mercurial Calorimeter of Favre and Silbermann 209 Heat Evolved during Metallic Precipitation 210 Calorific Equivalents of Elements
434
208a Bunsens Calorimeter
435
Heat Evolved during Metallic Precipitation
437
Calorific Equivalents of Elements 211 Heat Evolved during the Reaction of Acids and Bases 212 Heat Absorbed during Solution of Salts
442
Electricity and Magnetism 214 Connexion of Electricity with Magnetism CHAPTER VI
444
445455
445
Magnetism
447
Preparation of Magnets
448
316
450
The
451
PARAGRAPH TABLE OF CONTENTS
452
Variation in the Intensity of the Earths Magnetism
453
456505
456
180
460
Electrical Hypotheses
462
Electrical Induction
465
Faradays Theory of Induction
466
Distribution of the Electric Charge 231 Electrical Machines
469
The Quantity of Heat developed in Chemical Action is definite 200 Early Experiments 201 Researches of Andrews
469
Researches of Favre and Silbermann
469
Distribution of the Electric Charge
469
Magnetism
469
Leading Characters of Magnetic Action 216 Magnetic Induction
469
Preparation of Magnets
469
400
470
Extensive Operation of Induction 233 The Electrophorus 233a Holtzs Machine
474
Spread of Induction
477
Spread of Induction 235 The Leyden Jar 466 467
478
Measures of Electricity
481
Specific Induction
483
Daniells Battery
484
Various Modes of Discharge 485 239 Conduction
485
Groves Nitric Acid BatteryBunsens Coke Battery 267 Smees Battery
486
Resistances to the Voltaic Current
488
Velocity of Discharge
490
Striking Distance
492
Convection
495
Other Sources of ElectricityHeatFracture 246 Electricity from Chemical Action 247 Electricity of Vapour
498
Atmospheric ElectricityLightning Rods 249 Aurora Borealis
504
Differences between a Simple and a Compound Circuit PAGE 507
507
Electric Disturbance produced by Contact 258 Necessity of Chemical Action to produce Voltaic Action 259 Polarization and Transfer of the Element...
517
Energy of the Current proportionate to the Chemical Activity
520
Circuits with One Metal and Two Liquids
528
Ohms Theory
542
Chemical Decomposition
543
Wheatstones Rheostat and Resistance CoilsStandard of Resistance
548
Processes of Voltaic Discharge
553
73127 71
559
Heating Effects in Wires
561
Electric Conductivity of Liquids
564
72
565
Chemical Actions 282 Laws of Electrolysis
573
Relative Decomposability of Electrolytes 284 Electrochemical Actions
576
Electrolysis of Salts
578
Bearing of Electrolysis on the Theory of Salts
580
Unequal Transfer of Ions during Electrolysis
585
Electrovection or Electrical Endosmose
587
Secondary results of Electrolysis
590
Nascent State of Bodies
594
Theory of the Electrical Origin of Chemical Attraction
595
Differences between a Simple and a Compound Circuit 270 Ohms Theory 271 Chemical Decomposition
596
Electrotype or Voltatype Processes
598
Electrotype or Voltatype Processes 293 Preparation of Moulds for Electrotyping
600
Electrozincing
602
Electroplating
604
Electrogilding
605
Resemblances between Static and Voltaic Electricity 298 Delucs Dry PileZambonis Pile 299 Water Battery
610
ElectroMagnetism
611
Tangent Galvanometer
612
Influence of a Conducting Wire in Exciting Magnetism
613
Formation of ElectroMagnets
614
Molecular Movements during the Magnetization of Bars
615
Laws of ElectroMagnetism
616
Ampères Theory of ElectroMagnetism
618
Mutual Influence of Wires which are conveying Currents
619
ElectroMagnetic Rotations
622
Electric Telegraph
625
255
640
181
641
Henrys Coils
644
Aragos Rotations
648
MagnetoElectric Machines
650
315a Absolute Measures of ElectroMagnetic Quantities
655
ThermoElectricity
656
Summary of Facts in ThermoElectricity 317 ThermoMultiplier
660
319
662
321
664
322
665
324
666
Magnetism of bodies in general
668
325
670
326
672
327
673
328
674
330
678
The Voltameter 273 Further Application of Ohms Theory 274 Wheatstones Rheostat and Resistance CoilsStandard of Resistance
680
43
683
406
687
347
688
Comparison of Centigrade and Fahrenheit Thermometers
689
494
690
345
691
495
692
499
693
382
694
458
696
587
697
505
698
390
699
643
700
655
701
514
702
396
704
673
705
661
706
506
707
i

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Page 239 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity, and through the greatest space; that in fluids and elastic fluids, besides the vibratory motion, which must be conceived greatest in the last, the particles have a motion round their own axes, with different velocities...
Page 234 - ... passing from the solid to the liquid, and from the liquid to the gaseous form, or the contrary, occasioning endless vicissitudes of temperature over the globe.
Page 239 - ... the particles move round their own axes, and separate from each other, penetrating in right lines through space. Temperature may be conceived to depend upon the velocities of the vibrations ; increase of capacity, on the motion being performed in greater space ; and the diminution of temperature, during the conversion of solids into fluids or gases, may be explained on the idea of the loss of vibratory motion, in consequence of the revolution of particles round their axes, at the moment when...
Page 367 - On partially liquefying carbonic acid by pressure alone, and gradually raising at the same time the temperature to 88° Fahr., the surface of demarcation between the liquid and gas became fainter, lost its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or dickering stria* throughout its entire mass.
Page 283 - Flat, shallow excavations, from one to two feet deep, are loosely lined with rice straw or some similar bad conductor of heat, and upon the surface of this layer are placed shallow pans of porous earthen-ware, filled with water to the depth of one or two inches. Radiation rapidly reduces the temperature below the freezing-point, and thin crusts of ice form, which are removed as they are produced, and stowed away in suitable ice-houses until night, when the ice is conveyed in boats to Calcutta. Winter...
Page 138 - Simple bodies, as well as compounds, may produce lines; and two simple bodies which singly do not produce them, may in their compounds occasion them abundantly.
Page 474 - No elementary substance can be an electrolyte ; for from the nature of the process, compounds alone are susceptible of electrolysis. Electrolysis occurs only whilst the body is in the liquid state. The free mobility of the particles which form the body undergoing decomposition is a necessary condition of electrolysis, since the operation is always attended by a transfer of the component particles of the electrolyte in opposite directions. The passage of a current of electricity through the liquid...
Page 91 - ... lay the plate on the table with the edge, /, parallel to the window, the side to which the wax is attached being uppermost, and press the end of the wax against the crystal until it adheres ; then lift the plate with its attached crystal, and place it in the slit of the pin, x, with that side uppermost which rested on the table.
Page 152 - ... within the range of its two extremes ; but the same body, when converted into vapour, may produce a luminous atmosphere which may emit light of certain definite refrangibilities only, so as to produce a spectrum consisting of a series of bright bands of particular colours, separated from each other by intervals more or less completely dark. Bearing these facts in mind, the theory proposed to account for Fraunhofer's lines will be readily understood. In 1858, Mr. Balfour Stewart published in the...
Page 203 - Substances are said to be optically active when they produce rotation of the plane of polarisation of a ray of polarised light which passes through them. The rotation may be either to the right or to the left, according to the nature of the substance ; in the former case the substance is said to be dextro-rotatory ; in the latter, Izvo-rotatory.

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