出典:Wikipedia
出典:『Wikipedia』 (2009/12/17 10:48 UTC 版)
In chemistry, a stock solution is a large volume of a common reagent, such as hydrochloric acid or sodium hydroxide, at a standardized concentration. This term is commonly used in analytical chemistry for procedures such as titrations, where it is important that exact concentrations of solutions are used. Stock solutions do not necessarily come in concentrations of simple numbers; for example a solution could be 0.10082 M HCl.
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a solution
salinated solution
the solution alkalized
飽和溶液.
the stock-exchange
the stock exchange