ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
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The preparation of sodium tetrasulfide

L. Ulický

Slovak Technical University, Bratislava

 

Abstract: For the prepn. of Thiokol A a pure Na2S4 is necessary. On the basis of known methods, a new modified method for the prepn. of Na2S4 is described. Na2S.9H2O is heated for a short time at 60-70° with an exactly calcd. amt. of powd. S in a const. stream of dry H until a change to a yellow-clear soln. which changes under lowered pressure to a dark sirup-like soln. Still in a H atm., at -5 to -10°, Na2S4.6H2O is crystd. The purity was detd. potentiometrically and colorimetrically.

Full paper in Portable Document Format: 1310a628.pdf (in Slovak)

 

Chemical Papers 13 (10) 628–629 (1959)

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