Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate.
二甲基吡嗪与苯乙酸，硝酸银和过硫酸铵反应。
2
The standard states that the citric acid-sodium nitrate treatment is the least hazardous for removal of free iron and other metallic contamination and light surface contamination.
该标准声明：柠檬酸-硝酸钠处理在去除游离铁合其他金属污染和轻的表面污染物时，危险性最低。
3
Electric heating pipe can be widely used in heating water, oil, air, nitrate solution, acid solution, alkali solution and low melting point metal (aluminum, zinc, tin, Babbitt).