Acidity and alkalinity

Net alkalinity and net acidity 2: Practical considerations

The pH, alkalinity, and acidity of mine drainage and associated waters can be misinterpreted because of the chemical instability of samples and possible misunderstandings of standard analytical method results. Synthetic and field samples of mine drainage having various initial pH values and concentrations of dissolved metals and alkalinity were titrated by several methods, and the results were ...

Ketonuria and Urinary Acidity.

The significance of acetone bodies in the urine subsequent to surgical operations has long been the cause of controversy and is not as yet settled. It is now well recognised that ketone bodies are not necessarily associated with acidosis. Although a ketosis usually accompanies an acidosis, the reverse is by no means the case. Despite the fact that a true acidosisa lepletion of the alkali reserv...

Alkalinity of the Mediterranean Sea

[1] Total alkalinity (AT) was measured during the Meteor 51/2 cruise, crossing the Mediterranean Sea from west to east. AT concentrations were high ( 2600 mmol kg ) and alkalinity-salinity-correlations had negative intercepts. These results are explained by evaporation coupled with high freshwater AT inputs into coastal areas. Salinity adjustment of AT revealed excess alkalinity throughout the ...

Soil Acidity and Liming

Soil pH, soil acidity, and their effects on plants The pH scale, ranging from 0 to 14, is used to indicate acidity and alkalinity. pH is a measure of the concentration of hydrogen ions (symbol = H) in the water contained in the soil. A pH of 7.0 is neutral, values below 7 are acidic, and those above 7 are alkaline (basic). The lower the pH, the more acid the soil. Each unit pH drop indicates te...

Dispersion of Potassium Nitrate and the Resulting Strong Basicity on Zirconia