粉末洗剤中の炭酸ナトリウムと炭酸水素ナトリウムとの定量
1965 年 14 巻 6 号 p. 302-304
詳細
1965 年 14 巻 6 号 p. 302-304
In order to determine Na2CO3 and NaHCO3 in the detergent powder, hydrochloric acid was added to the two detergent samples, one of which was previously heated at 160°C, and the others was not heated. CO2 liberated was absorbed in the N/10-KOH solution, and K2CO3 formed was determined by titration with N/2-HCl solution. The contents of Na2CO3 and NaHCO3 in the detergent sample were calculated from the difference of titration values and almost satisfactory results were obtained.
