Sulphur: Chemistry Notes by Hussein Kato

These notes by Hussein Kato of Trinity College Nabbingo introduce sulphur’s position in the periodic table, atomic structure and valency. They describe its natural occurrence, extraction through the Frasch process and recovery from hydrogen sulphide in petroleum gases. The material explains sulphur’s allotropes, with particular attention to the preparation, appearance and properties of rhombic and monoclinic crystals. A comparison table highlights their differences, while additional sections discuss transition temperature, amorphous sulphur and plastic sulphur. The notes also outline basic physical properties, including colour, solubility and conductivity.