sodium tetrasulfide

例句：

1. 1.This chemical is used as a preservative in food processing.
   这种化学物质在食品加工中用作防腐剂。
2. 2. The reaction produces a gas that can be harmful if not handled properly.
   该反应产生一种气体，如果不妥善处理可能会有害。
3. 3.Sodium tetrasulfide is also known for its ability to remove stains from clothes.
   硫化钠四水合物也因其去除衣物污渍的能力而闻名。