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La présente Ligne directrice décrit la méthode électrométrique de détermination du pH d’une solution ou dispersion aqueuse non diluée, d’une dilution de cette solution ou dispersion dans l’eau, ou d’un produit chimique dilué pour une utilisation finale. Elle détaille également les procédures à suivre pour établir le pouvoir tampon d’un produit chimique acide ou basique, à l’aide d’une base ou d’un acide fort ou faible. Le pH d’une solution ou dispersion aqueuse est déterminé à l’aide d’un pH-mètre équipé d’un système d’électrode approprié. L’acidité ou l’alcalinité d’une solution ou dispersion dans l’eau est établie par titrage avec une base ou un acide standard, avec détermination du pH par la méthode électrométrique.

Water --- Acidity function --- Analysis --- Acids --- Dissociation --- Water-analysis --- Sanitary chemistry --- Composition --- Acidity function. --- Analysis.

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This book offers effective methods of regulating soil pH for sustainable crop production by decreasing soil contaminants, balancing soil pH, improving nutrient uptake, and increasing crop yields. The book discusses methods of measuring soil pH, factors influencing soil pH, the influence of soil pH on nutrient availability and microbial activity, the causes and amendments of soil acidity, the effects of fertilizers on soil acidity, and soil pH preferences of various crops. This book will serve as a guide for understanding the roles of pH in soil and crop productivities. This is an important resource for soil, crop, and environmental scientists, agronomists, crop physiologists, botanists, foresters, wildlife scientists, and students in these disciplines.

Soil science. --- Crops --- Effect of soil acidity on. --- Soil acidity --- Pedology (Soil science) --- Agriculture --- Earth sciences --- Soil science, sedimentology

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Climatic changes --- Forest declines --- Soil acidity --- Water quality management --- Climat --- Changements

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Sulphuric acid --- Acidity function --- Reactivity (Chemistry) --- Réactivité (Chimie) --- Sulfuric acid --- 544.43 --- Mechanism of chemical reactions --- Acidity function. --- Sulfuric acid. --- Basic Sciences. Chemistry --- Chemistry (General) --- Reactivity (Chemistry). --- Chemistry (General). --- Réactivité (Chimie) --- Battery acid --- Electrolyte acid --- Hydrogen sulfate --- Oil of vitriol --- Oleum --- Vitriol, Oil of --- Inorganic acids --- Sulfur acids --- Chemical reaction, Conditions and laws of --- Chemical reactions --- Acids --- Dissociation

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fysicochemie --- Organic reaction mechanisms and kinetics --- Chemical equilibrium --- Chemical structure --- Physical organic chemistry --- Equilibre chimique --- Structure chimique --- Chimie organique physique --- 544.34 --- Chemistry, Physical organic --- #WSCH:FY13 --- Chemistry, Organic --- Chemistry, Physical and theoretical --- Structure, Chemical --- Matter --- Equilibrium, Chemical --- Phase rule and equilibrium --- Constitution --- Organic compounds. --- Acidity --- Basicity --- Conformation --- Equilibrium --- Force --- Linear free-energy relationship --- Reaction (chemistry) --- Solvent effect --- Symmetry --- Taft equation --- Thermodynamics