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Plastic Sulphur


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When molten sulphur is heated up to boiling and then poured with a thin stream into cold water, it turns into elastic rubber like material which is called plastic sulphur. It is soft, sticky rubber like material. It on standing, is converted into opaque brittle sold containing some rhombic sulphur.


The plastic sulphur is composed of long chins of sulphur atoms coiled up. The elasticity is due to uncoiling of long sulphur chains and then recoiling of chains by release of tension ( stress ).

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