Kolthoff of Minnesota
Kolthoff of Minnesota
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明尼苏达州的科尔索夫
DOI：
10.1201/9780429026171-1
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发表时间：
2019
影响因子：
--
通讯作者：
Paul Nelson
中科院分区：
文献类型：
--
作者：
Paul Nelson
1 Cablegram，南卡罗来纳州联系我Kolthoff，5 Aug. 1927; Cablegram，I.M.科尔托夫到南卡罗来纳州林德，1927年8月8日。I.M.化学家：“别担心，妈妈，我会把你的鸡汤恢复到最佳pH值。”这就是皮耶特（Piet，他童年时的昵称，发音为Pete）Kolthoff喜欢讲的故事的要点，并且经常讲。他十五岁，把家里厨房的一部分改造成了一个临时的化学实验室。一天，我走进厨房，发现母亲一个人孤零零的。妈妈误把鸡汤放进去了。. .用几大勺碳酸钠[小苏打]代替氯化钠[食盐]。当我告诉她把碳酸盐变成氯化钠只是小孩子的游戏时，她正准备把所有的东西都扔进水槽里。因此，我进行了第一次滴定，加入盐酸，直到pH值为7时石蕊试纸变成紫色。根据我的经验，这仍然是鸡汤的最佳pH值。
1 Cablegram, S.C. Lind to I.M. Kolthoff, 5 Aug. 1927; Cablegram, I.M. Kolthoff to S.C. Lind, 8 Aug. 1927. I.M. The Chemist “Don’t worry, mama, I will restore your chicken soup to its optimal pH.” Such is the gist of a story that Piet (his nickname from childhood, pronounced Pete) Kolthoff liked to tell, and told often. He was fifteen years old and had converted part of the family kitchen into a makeshift chemistry lab. One day I got in the kitchen and found my mother desolate. By mistake Mother had put in the chicken soup . . . several large spoonfuls of sodium carbonate [baking soda] instead of sodium chloride [table salt.] She was just ready to throw everything into the sink when I told her that it was child’s play to transform the carbonate into sodium chloride. Thus, I made my first titration, adding hydrochloric acid until -at a pH of 7 -litmus paper turned violet. This, in my experience, is still the optimum pH of chicken soup.2