Associated ions Short-lived species formed

Adsorption Adhesion of species onto surfaces of particles. Associated ions Short-lived species formed by the collision of dissolved ions of opposite charge. 

We would expect potassium sulfide melts to be formed from mono- and diatomic sulfur gas, primarily the diatomic gas, and the even numbered polythio ions or the monosulfide. Since the tetrasulfide decomposes at 850°C and higher sulfide numbers are associated with lower decomposition temperatures, their role in the chemistry discussed here is very short lived if it exists. We are reduced to dipotassium monosulfide, dipotassium disulfide and dipotassium tetrasulfide as possible sulfide species. Similarly, the possible thio-oxo ions are eliminated except for sulfate others may have fleeting existence but if the temperatures at which they are known to... 

---