iron nitrate

例句：

1. 1.This chemical is used to treat burns and wounds.
   这种化学物质用于治疗烧伤和伤口。
2. 2.The iron nitrate helps to strengthen the immune system.
   这种硝酸铁有助于增强免疫系统。
3. 3.The iron nitrate was found in the soil samples collected from the site.
   在从该地点收集的土壤样本中发现了硝酸铁。