Base a class of chemical compounds which are hydrogen ions able to accept. Like oxygen of metal or hydroxide alkali. Water soluble alkali ions, which haidroksaida (, OH - ), he provides branasteda Laurie theory- according to the alkali is called. Other elements of alkalara include electron joint donation, hydroxide ion source or aerhenian doctrine . These chemical compounds dissolve in water, releasing hydrogen ions, the solution of pH of solution is greater than the methane water, more than 7. Among the most common alkalis, sodium hydroxide is significant, Ammonia .
Chemically anti-acid contaminants are alkaline. The reaction between acids and alkalis is called mimetic reaction . Acids and alkalis are considered contrary to the reason that acid concentration of hydronean ion increases in water; On the other hand, alkaline reduces it. Molecular reaction with alkaline acids produces salt and water , such as Ca (OH) 2 (alkaline) + H2SO4 (Acid) -------> CaSO4 (salt) + 2H2O (water).
