The chemical formula of potassium dithioiodide is KIS2, which means "kiss", replacing the explicit word "kiss" and also means "I love you", so "kiss" is deeply loved by netizens. In KISS, s stands for sulfur, two s stand for disulfide, I stands for iodine and K stands for potassium, so it means "potassium dithioiodide".
The chemical principle behind potassium dithioiodide
In fact, potassium dithioiodide is a non-existent metamaterial, and there are two isomers: potassium dithioiodate (KSIS) and potassium dithioperoxyiodate (KSSI). Among the two isomers of KIS2, potassium dithioperiodate (KSSI) can be synthesized instead of potassium dithioperiodate (KSIS). Some people who lack chemical literacy speculate that potassium dithioiodate can be synthesized because the existence of sodium chlorite (NaClO2) is similar to the properties of congener elements, which is wrong.
Refer to the above content: Baidu Encyclopedia-potassium iodide disulfide