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    发布时间:2016-1-19 16:50:10   点击:次   【打印】【关闭

         The concentration of a solution of sodium hydroxide need often to calibration
         Junior high school, we contact is sodium hydroxide in the chemistry curriculum, so it has been very deep, the influence of us here today to discuss why the concentration of sodium hydroxide solution need often to re-mark reason!
         Because sodium hydroxide in the air, easy deliquescence in scale in sodium hydroxide in the process of the configuration of solid sodium hydroxide solution, prone to error. Configured sodium hydroxide solution, even if has been calibration, after a period of time not to use, also can because carbon dioxide from the air, soluble in water Will form carbonic acid, carbonic acid and sodium hydroxide reaction, reduce the concentration of sodium hydroxide, so still must to do calibration again before use, to confirm the concentration.
         Friend wanted to buy sodium hydroxide, then to taian heavens!!!! Professional technical support worth your trust.

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