1·By 1791, Nicolas Leblanc had succeeded in producing sodium carbonate from salt by a 2-step process.
1791年，尼古拉斯·卢布朗用“两步法”(2 - step process)成功的从食盐中制造出了碳酸钠。
2·Mark Brenckle, an undergraduate at Tufts, adding sodium carbonate into boiling water as part of the silk degumming process.
塔夫斯大学的大学生马克·布伦克尔（Mark Brenckle）正在往沸水中加入碳酸钠，这是蚕丝脱胶步骤的一部分。
3·Big quantities of quicklime are used to convert sodium carbonate into sodium hydroxide the key chemical reagent in this process.
采用了大量的生石灰来把碳酸钠转换成氢氧化钠，它是这个过程中。
4·Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.
例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。
5·Sodium carbonate deposits may be classified into three major types, Quaternary salt lake, Quaternarysand-covered playa and Tertiary continental detrital rock, all three having been found in China.
碳酸钠矿床有三大类型：第四纪盐湖型、第四纪砂下湖型及第三纪陆相碎屑岩型，在中国均有发现。