black mercuric sulfide

例句：

1. 1. The black mercuric sulfide was used in ancient times as a pigment for painting.
   古代，黑汞被用作绘画颜料。
2. 2.The black mercuric sulfide is highly toxic and should be handled with care.
   黑汞极其有毒，应小心处理。
3. 3.The black mercuric sulfide was found to have antibacterial properties.
   研究发现，黑汞具有抗菌特性。