It is a yellow, tasteless, and odorless solid (m.p.112)(see figure 8.22)that is insoluble in water but soluble in carbon disulfide. When heated, it is slowly converted to monoclinic sulfur (m.p.119),which also consists of the S8 units. When liquid sulfur is heated above 150,the rings begin to break up and the entangling of the sulfur chains results in a sharp increase in the liquid is viscosity. Further heating tends to rupture the chains, and the viscosity decreases.