NEAT OF TRANSFORMATION OF CHAINS IN AMORPHOUS SULFUR

The heat Q of transformation of the chains in amorphous sulphur was me asured calorimetrically. The mean value Q for samples remelted at T-f = 443 K increases from 31.5 to 45.9 J g(-1) in the measurement tempera ture range from 288 to 303 K. For samples remelted in the T-f range fr om 443 to 573 K, the (Q) over bar values are from 30.6 to 24.0 J g(-1) . The results are discussed on the basis of the theory of nucleation a nd growth of nuclei.