paratoluenesulfonic acid ammonium salt

例句：

1. 1. This compound is used as a pH indicator in the analysis of organic compounds.
   这种化合物用于有机化合物分析中的pH指示剂。
2. 2. The reaction between paratoluenesulfonic acid and sodium hydroxide produces a clear solution.
   对甲苯磺酸与氢氧化钠反应产生清澈溶液。
3. 3. The ammonium salt of paratoluenesulfonic acid has been found to be effective in removing pollutantsfrom water.
   对甲苯磺酸铵盐的氨盐水已被发现能有效从水中去除污染物。