反应化学方程式：HAc+NaNO2=NaAc+HNO22HNO2=NO (g)+NO2 (g)+H2O 反应的现象：放出棕红色气体和水蒸气，放出大量的热，并伴随有H2NO3的产生。 原因：亚硝酸极不稳定，稍微受热就会分解为一氧化氮和二氧化氮。 若是在温度低和浓度低的情况下变不会较快的分解。

2019年11月28日 · In this study, the influences of different pH values on the corrosion and passivation behaviors of a Q235 carbon steel in HNO3–NaNO2, HAc–NaNO2 and HCl–NaNO2 solutions were studied by electrochemical methods. The manifestations of the electrochemical characteristics were revealed and the variations in the electroch

本研究采用电化学方法研究了不同pH值对Q235碳钢在HNO 3 -NaNO 2、HAc-NaNO 2和HCl-NaNO 2溶液中腐蚀和钝化行为的影响。 揭示了电化学特性的表现，阐明了电化学参数的变化。

different pH values on the corrosion and passivation behaviors of Q235 carbon steel in HNO3–NaNO2, HAc–NaNO2 and HCl–NaNO2 solutions are studied by electrochemical methods, and the related electrochemical mechanisms are also discussed in detail.

In this study, the influences of different pH values on the corrosion and passivation behaviors of a Q235 carbon steel in HNO3–NaNO2, HAc–NaNO2 and HCl–NaNO2 solutions were studied by electrochemical methods. The manifestations of the electrochemical characteristics were revealed and the variations in the electrochemical parameters were clarified.

In this study, the influences of different pH values on the corrosion and passivation behaviors of a Q235 carbon steel in HNO3–NaNO2, HAc–NaNO2 and HCl–NaNO2 solutions were studied by ...

HNO_3-NaNO_2,HAC-NaNO_2及びHCl-NaNO_2溶液中のQ235炭素鋼の腐食及び不動態化に及ぼすpHの影響の電気化学的研究【JST・京大機械翻訳】

答： (1)在弱酸介质（如HAc）中，硝酸盐无氧化性，亚硝酸盐有氧化性，可以利用KI与之反应鉴别。 (2)NO3-无还原性，NO2-有还原性，利用MnO4-与之反应可以鉴别。

醋酸与亚硝酸钠的化学反应方程式HAc+NaNO2=NaAc+HNO22HNO2=NO (g)+NO2 (g)+H2O

To be balanced, every element in NaNO2 + KI + HAc = I2 + NO + NaAc + KAc + H2O must have the same number of atoms on each side of the equation. When using the inspection method (also known as the trial-and-error method), this principle is used to balance one element at a time until both sides are equal and the chemical equation is balanced.