# What are s-s bonds?

Feb 18, 2016

Presumably you mean a sulfur-sulfur bond?

#### Explanation:

Peroxide bonds, $O - O$, are known; what is the oxidation state of $O$ here?

Polysulfide bonds are much more common. The next time you are in a lab, get some elemental sulfur, i.e. ${S}_{8}$, and drop some in water. As you probably know, sulfur is practically insoluble in water. Add a bit of sulfide salt, say $N {a}_{2} S$. The sulfur will go up magically. Why?

Elemental sulfur is reduced by sulfide to give a polysulfide salt:

S_8(s) + S^(2-) rarr ""^(-)S-S-S-S-S-S-S-S-S^-

The chain length can vary.