in the textiles industry for delinting of cotton seeds and the reclamation of wool, gasoline refining, the manufacture of organic and inorganic chlorinated compounds, and in the manufacture of semiconductors as an etchant.

• 纺织工业中用于除棉籽和毛线的回收、汽油精制、有机和无机氯化合物的生产、半导体生产中作为蚀刻剂。