Landolt-Brnstein Group II
: Molecules and Radicals
Volume 5 

Molecular Acoustics 

Title Page, Preface, Survey, Errata 
1	
Introduction 1

2	
Sound velocity in gases and liquids 6

2.1	
Pure gases and liquids 6

2.1.1	
Sound velocity in gases and vapors 6

2.1.2	
Sound velocity in liquids 12

2.2	
Mixtures of gases, mixtures of liquids, and solutions 74

2.2.0	
Introduction 74

2.2.1	
Sound velocity in binary mixtures and solutions 76

2.2.2	
Sound velocity in aqueous solutions of electrolytes 109

2.2.3	
Sound velocity in nonaqueous solutions of electrolytes 126

3	
Sound absorption and dispersion in gases and liquids 127

3.1	
Absorption and dispersion in gases 127

3.1.0	
Introduction and definitions 127

3.1.1	
Translation relaxation in monoatomic gases 128

3.1.2	
Rotation relaxation in diatomic gases 129

3.1.3	
Vibration relaxation in diatomic gases 134

3.1.4	
Vibration relaxation in triatomic gases 136

3.1.5	
Vibration relaxation in vapors of polyatomic substances 138

3.1.6	
Dissociation relaxation 147

3.1.7	
Absorption and dispersion in gases with foreign-gas additions 147

3.2	
Sound absorption in chemically homogeneous liquids 155

3.2.0	
Introduction 155

3.2.1	
Sound absorption in liquid elements 155

3.2.2	
The frequency-independent portions of sound absorption in organic liquids 157

3.2.3	
Sound absorption in nonassociated inorganic liquids of simple molecules 169

3.2.4	
Sound absorption in nonassociated aliphatic hydrocarbons 170

3.2.5	
Sound absorption in cyclic hydrocarbons and in some of their derivates 174

(without associations)

3.2.6	
Sound absorption in aliphatic halogen containing carbon compounds without 178

associations

3.2.7	
Sound absorption in nonassociated ethers, aldehydes, and ketones 181

3.2.8	
Sound absorption in nonassociated esters 183

3.2.9	
Sound absorption in diethylamine and triethylamine 187

3.2.10	
Sound absorption in water, H2O 188

3.2.11	
Sound absorption in alcohols (associating liquids) 189

3.2.12	
Sound absorption in fatty acids 192


3.3 
3.3.0 
3.3.1 
3.3.2 
3.3.3 
3.3.4 
3.3.5 
3.4 
3.5

4

4.1 
4.2 
4.3

5

5.0 
5.1 
5.2 
5.3

6

6.0 
6.1 
6.2 
6.3 
Sound absorption in mixtures and solutions 195

Introduction 195

Mixtures of components without association properties 196

Mixtures containing one component with association properties 199

Absorption in aqueous solutions 209

Specific absorption in solutions of higher molecular substances 211

Sound absorption and sound absorption anomalies in liquids of higher viscosity, 213

especially in oils
Sound absorption in solutions of electrolytes 215

Sound propagation and depolymerization effect in polymers 222

Sound propagation in liquid helium 227

Phase diagram of helium He-4 227

Velocity and absorption of the ordinary sound: u1 and a1 228

Velocity of the second sound: u2 (second-sound-effect) 232

Sound propagation in isotropic or quasi-isotropie solids 234

Introduction
Inorganic solids
Organic solids
Solid high polymers
Velocity of shock waves
Definitions
Measurements in gases

234 
236 
244 
245 
252 
252 
253 


Measurements in water, mercury, and in organic liquids 254

Measurements in metals 256

Index of substances 259

A Elements and inorganic compounds 259

B Organic compounds 262

C Solutions and mixtures 274



