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.
A chemical compound that is opposite to an acid. It donates hydroxide ions. Also known as a base. Some common alkaline compounds are baking soda, sodium carbonate. In batteries Potassium Hydroxide is a commonly used alkaline.
According to Webster, "1 : a soluble salt obtained from the ashes of plants and consisting largely of potassium or sodium carbonate; broadly : a substance (as a hydroxide or carbonate of an alkali metal) having marked basic properties." Also, having a high carbonate hardness or kH. However, it is sometimes erroneously used to mean water having a pH of above 7.
A term used when something contains alkali or has a pH level of more than 7.0. It is the opposite of acidic. In paper products, an alkaline substance is added to the pulp during the manufacturing process, which gives permanence
containing an unusual amount of soluble mineral salts such as chlorides, sulfates, carbonates, bicarbonates of sodium, potassium and magnesium (These "salts" are all important to maintaining a healthy body.)
A substance that has fewer hydrogen ions, causing its pH to be greater than 7. This is the same as basic. Introduction Task Process Information resources Guidance Dr. Bravo Ms. Alarcón Dr. Sosa Dr. Soto Mr. Sanchez
Alkaline batteries are an efficient battery type that is both economical and reliable. In alkaline batteries, the hydrous alkaline solution is used as an electrolyte. The most common use of this solution is in a manganese-dioxide primary cell with potassium hydroxide as an electrolyte. During cell discharge, the oxygen-rich manganese dioxide is reduced and the zinc becomes oxidized while ions are being transported through the conductive alkaline electrolyte.
of or like an alkali. Alkali can neutralize acids and increase the pH of a solution. Examples include baking soda, ammonia, potash, etc., that are soluble in water. An alkaline substance has a pH greater than 7.0.
The "opposite" of acid, a solution or substance having a high concentration of (OH) ions that can buffer or neutralize an acid. An example of an alkaline substance is lime used to neutralize soil acidity on farm fields and lawns.
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 counteracting acids that may form in the future. A buffer may be added during the manufacturing 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.
Any compound having the qualities of a base. Simplified, a substance that readily ionizes in aqueous solution to yield hydroxyl (OH-) anions. Alkalis have a pH greater than 7 and turn litmus paper blue.
A chemical compound that has a pH greater than 7. They have a low hydrogen concentration. Also known as a base. Baking soda and sodium carbonate are common alkaline compounds. In batteries Potassium Hydroxide is a commonly used alkaline.
In our context, a substance having a pH above that of neutral water (7.0) when in solution. Signified as pH (potential of Hydrogen), alkaline fluids, such as the blood (pH about 7.4), have the ability to neutralize acids (solutions below pH 7.0). Metabolic wastes are acids, and the alkaline reserve of the blood neutralizes them until they are excreted.
Term that describes a certain pH factor. The pH factor stands for a concentration of hydrogen ions. The more hydrogen ions present, the more acidic the condition. The pH scale reaches from 1 (= very acidic) to 14 (= very alkaline). Pure water has a pH value around 7 and is neutral. Our blood has a pH value of 7.35 (compare also acid-alkaline balance).
Alkaline metals are from Group 1 (lithium, sodium, potassium, rubidium, cesium, francium) of the Periodic Table. For example, sodium hydroxide (NaOH) is an alkili. They are highly reactive in water. Commonly used interchangeably with base; this is erroneous. All alkalis are bases but not all bases are alkaline! Ammonia is not an alkili, but when dissolved in water it forms one - ammonium hydroxide. Take care to refer to measuring whether something is a base, or to measuring a substance's pH, rather than measuring "alkilinity".
A primary battery (non-rechargeable) often used in electronics applications requiring heavy currents for long periods of time (i.e.: cd players, radios, etc.). Alkaline batteries can deliver 50-100% more total energy than conventional Carbon/Zinc batteries of the same size, hence their popularity in consumer applications.
A dry, scratching sensation at the back of the tongue caused by alkaline and phenolic compounds that have bitter but not necessarily disagreeable tastes. An alkaline taste is mostly characteristic of dark roasts and some Indonesian coffees.