These are substances that have a pH over 7 0 Alkaline based paper increases the longevity of paper Alkaline substances can be added to a material to neutralize acids or as an alkaline reserve or buffer for the purpose of counteracting acids that may form in the future A buffer may be added during manufacture or during the process of deacidification While a number of chemicals may be used as buffers, the most common are magnesium carbonate and calcium carbonate
Soils that are basic rather than acidic with a PH value greater than 7 0 They contain high amounts of various salts of sodium and/or potassium, together with other soluble minerals
Alkaline substances have a pH over 7 0 They may be added to a material to neutralize acids or as an alkaline reserve or buffer for the purpose of counter-acting acids that may form in the future A buffer may be added during manufacture of during the process of deacidification While a number of chemicals may be used as buffers, the most common are magnesium carbonate and calcium carbonate
Soil acidity affects a plant's ability to absorb nutrients Alkaline soil has a pH of more than 7 0 -- A soil with a pH between 7 5 and 8 0 is mildly alkaline; 8 0 to 9 0 soils are moderately alkaline; and above that, soil is considered highly alkaline Plants growing in alkaline (or basic) soil are less able to absorb phosphorus, iron, and manganese Areas tending to experience drought will often have alkaline soils In addition to adding organic material, soil can be made less alkaline by adding elemental sulfur
sometimes water or soils contain an amount of alkali (strongly basic) substances sufficient to raise the pH value above 7 0 and be harmful to the growth of crops
in lubricating oil, the property of the substance that give it the chemical character of a base Alkaline materials neutralize acids to prevent acidic and corrosive wear in internal combustion engines
(1) Having the properties of a base (2) Containing sodium and/or potassium in excess of the amount needed to form feldspar with the available silica; e g , an alkaline rock-in this sense sometimes written alkalic (3) Containing ions of one or more alkali metals (4) Waters containing more than average amounts of carbonates of sodium, potassium, magnesium, or calcium
Having a pH factor of more than 7; having a relatively low concentration of hydrogen ions (contrasted with acid, especially as a characteristic of soil)
The condition of water or soil that contains an amount of alkali substances (various soluble salts) to raise the pH above 7 0; when extreme, alkalinity is caustic
Some soils are actually too alkaline for certain plant life. ¡Ù acidic + alkalinity al·ka·lin·ity A pH test measures the acidity or alkalinity of a substance. ¡Ù acidity. containing an alkali
Some soils are actually too alkaline for certain plant life. acidic + alkalinity al·ka·lin·ity A pH test measures the acidity or alkalinity of a substance. acidity. containing an alkali