SULPHUR 



81 



When heated to 114.5 C., sulphur melts to a clear, 

 amber colored liquid which flows almost as readily as 

 Avater. As the temperature is increased, the color of 

 the liquid gradually thickens and passes through the 

 various shades of amber to a dark red wine color, until 

 at 200 C. the color is almost black and the mass so 

 thick and viscous that the vessel in which it is heated 



Figr. 34. 



Melted sulphur forms an elastic mass when suddenly 

 cooled in water. 



may be inverted without the mass running out. Fur- 

 ther heating converts it into a black liquid again, 

 which if suddenly cooled by pouring into water, will 

 be found to be elastic in nature. If the temperature 

 is increased to 448 C., the liquid boils, giving off a 



