iron ammonium sulfate

例句：

1. 1. This chemical is used in the production of steel to improve its strength.
   这种化学物质用于钢铁生产，以增强其强度。
2. 2. The iron ammonium sulfate was added to the mix to help with the molding process.
   在混合物中加入了铁铵硫酸盐，以帮助成型过程。
3. 3. The iron ammonium sulfate was used as a preservative in food storage.
   铁铵硫酸盐被用作食品储存的防腐剂。