靛青漂白粉

例句：

1. 1. The chemical was used to whiten clothes and remove stains.
   这种化学品被用来使衣物变白并去除污渍。
2. 2. The dyeing process involved using the chemical as a preservative.
   染色过程涉及使用该化学品作为防腐剂。
3. 3. The factory produces a variety of chemicals for industrial use.
   这家工厂生产各种化工产品供工业使用。