Online Google Dictionary

alkalinity 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. pH values above 7
  2. Alkalinity or AT is a measure of the ability of a solution to neutralize acids to the equivalence point of carbonate or bicarbonate. The alkalinity is equal to the stoichiometric sum of the bases in solution. ...
  3. The state of being, or the degree to which a thing is, alkaline
  4. Measure of the amount of acid neutralizing bases.
  5. Also more commonly called total alkalinity. A measure of the pH-buffering capacity of water. Also called the water's resistance to change in pH. Composed of the hydroxides, carbonates and bicarbonates in the water. One of the basic water tests necessary to determine water balance.
  6. The quantitative capacity of water or water solution to neutralize an acid. It is usually measured by titration with a standard acid solution of sulfuric acid, and expressed in terms of its calcium carbonate equivalent. ...
  7. A measurement of an alkaline rating about 7 on the PH scale.
  8. the capacity of water for neutralizing an acid solution.
  9. The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids.
  10. The quantitative capacity of water to neutralize an acid; that is, the measure of how much acid can be added to a liquid without causing a significant change in pH. Alkalinity is not the same as pH because water does not have to be strongly basic (high pH) to have high alkalinity. ...
  11. ^  Having the properties of a base with a pH of more than 7.  A common alkaline is baking soda.
  12. None of the tweets we sampled for the term Alkalinity were judged to have scientific content. It occurred mainly in pseudo-scientific health advice. The peak in sample T-300-2 (31 of 60 tweets) was boosted by tweets about measuring pH in swimming pools, fish tanks etc. ...
  13. The titratable alkalinity, using a standard acid titrant, as performed in accordance with standard methods. It is normally reported as milligrams per liter as calcium carbonate (CaCO3), but it may also be reported as milliequivalents per liter as bicarbonate (HCO3-).
  14. The measurable ability of solutions or aqueous suspensions to neutralize an acid.
  15. The capacity of bases to neutralize acids. An example is lime added to lakes ...
  16. The presence of excess hydroxide ions compared to hydrogen ions (protons). The opposite of acidity; high on the pH scale.
  17. The capacity of water for neutralizing an acid solution. Alkalinity of natural waters is due primarily to the presence of hydroxides, bicarbonates, carbonates and occasionally borates, silicates and phosphates. ...
  18. The quality of a material to be basic or alkaline when exposed to moisture or water producing a blue reaction to litmus paper. A pH measure greater than 7.0.
  19. This is the measure of a solution's resistance to changes in pH. It is commonly measured as carbonate alkalinity or total alkalinity, and is expressed in meq, dKH, or ppm of C03 ions. The alkalinity can be raised by adding a buffer.
  20. A measure of a material's ability to neutralize acids.
  21. The condition of pH between 7-14. The chief cause of alkalinity in brewing water is the bicarbonate ion (HCO3^-1).
  22. The measurement of the number of hydrogen ions in water, expressed in terms of pH with above pH7 being alkaline.
  23. A measure of the ability of a solution to behave as a base, a compound that takes up protons (H^+) or releases hydroxide ions (OH^–). Compare acidity. [2]
  24. A measure of calcium carbonate expressed as mag/l of CaCO3.
  25. a pressure- and temperature-independent property of water that determines in part the carbon content. Formally defined as the equivalent sum of the bases that are titrable with strong acid.