# What is the structure of powdered sulfur?

Quoting this paper:

A variety of allotropic states of elementary sulfur have been identified. Solid crystalline sulfur exists either as rings of 6-12 sulfur atoms (cyclohexasulfur, $\ce{S6}$, cyclooctasulfur $\ce{S8}$, etc. or as chains of sulfur atoms (catenasulfur $\ce{S_{\infty}}$).

As said on the same paper, Alpha-sulfur (orthorombic - $\ce{S_{\alpha}}$) is the thermodynamically stable form under ordinary conditions.

What happens with powdered sulfur (also called "dusting sulfur", normally used as fungicide)? Are sulfur atoms still organized in rings or chains?

Can we associate a precise crystalline phase to powdered sulfur?

• Powdered sulphur is still the same orthorombic sulphur which is thermodynamically stable under normal conditions. – Ivan Neretin Jan 19 '16 at 10:06