ferric potassium alum

例句：

1. 1. This ferric potassium alum is used as a catalyst in the production of plastics.
   这种铁铝酸钾用于塑料生产中的催化剂。
2. 2. The chemical reaction between this ferric potassium alum and water produces a gas.
   这种铁铝酸钾与水之间的化学反应产生气体。
3. 3.The ferric potassium alum is also used as a rust inhibitor in paints and coatings.
   这种铁铝酸钾还被用于油漆和涂层中的防锈剂。