This is a bottle of DeSulfur Dichloride. It is a yellow water-like liquid. Then I put the plug on. I added a bit of antimony metal to the beaker. Some bubbles were produced. I tried it again. Their reaction was very violent. Some sulfur dioxide gas was emission only gas. The liquid started boiling. It doesn't make any heat from the reaction. So I ran away. The antimony metal was fade away. I added a piece of bismuth metal. But nothing happened. At last, I have conducted harmless treatment on these waste materials. Thanks for watching.