ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The reasons for rapid hardening of thiokol

A. Tkáč, V. Kellö, and L. Ulický

Slovak Technical University, Bratislava

Abstract: By studying the factors causing a rapid hardening of thiokol (I) of domestic origin (Czech.), it was detd. that the loss of plasticity and elasticity is caused by polymer crystn. The decompn. products of Na₂S₄ formed by thermal reaction or by spontaneous oxidation of S linked to Na₂S₄ accelerate the process of crystn. By prepg. I from Na₂S₄ soln. of definitive concn., a product resistant to rapid hardening is formed which by infrared absorption spectral analyses has shown to be different in the amt. of bound H₂O, decompn. products, and oxidation impurities from a rapid hardening tech. pure product. The structural analyses indicate the presence of cyclic bound S which is in agreement with the results of x-ray structural analyses.

Full paper in Portable Document Format: 127a391.pdf (in Slovak)

Chemical Papers 12 (7) 391–400 (1958)