In this paper a potentiometric titration was used to improve the neutral sodium sulfite method for determining the content of formaldehyde, and the accuracy and influential factors were discussed.
采用电位滴定法改进了测定甲醛含量的中性亚硫酸钠法，并对其准确度和影响因素进行了探讨。
A method for synthesizing sodium sulfoacetic is discussed, which sodium sulfoacetic is synthesized with sodium sulfite and ethyl monochloro acetate, with sodium sulfite and chloroacetic acid.
主要分别介绍用亚硫酸钠与氯乙酸乙酯合成磺酸乙酸钠和亚硫酸钠与氯乙酸合成磺酸乙酸钠。
The analysis method of contents of sodium sulfite were introduced. The influence factors on the result of the test were put forward.
介绍了盐水中亚硫酸钠含量的分析方法，针对实验结果的影响因素提出了注意事项。
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