SULPHUR 83 



the gas is formed by burning sulphur in the room. 

 A safer method, however, is to purchase a small can 

 of sulphur dioxide in liquid form. On opening the can 

 the gas escapes into the room. 



Sulphur dioxide is also used for bleaching purposes, 

 especially for straw, feathers, and fabrics. 



The elastic nature of the suddenly cooled sulphur 

 gives a hint of another commercial use of sulphur. 

 Much of it is used in vulcanizing rubber. 



It is also used in making fireworks, gunpowder, and 

 as a spray to free trees, shrubs, and vineyards from 

 attacking fungi. 



Questions 



1. Name the different kinds of sulphur in the 

 laboratory. 



2. How do they differ? 



3. Is this a chemical or a physical difference? 



4. Where is sulphur found? 



5. How is it mined in Sicily ? 



6. How in Louisiana? 



7. What are the chief physical characteristics of 

 sulphur ? 



8. What are some of its chemical characteristics? 



9. Name a number of commercial uses of sulphur. 



10. What part does sulphur play in the manufac- 

 ture of the friction match? 



11. How is sulphur dioxide produced? What are 

 some of its uses? 



