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

Carbonation of sodium sulfide + sodium carbonate solution

V. Kubelka and J. Hojnoš

Forschungsinstitut für Celluloseindustrie in Bratislava

Abstract: The carbonation of Na₂S + Na₂CO₃ soln. by gaseous CO₂ at various concns. and temps. was studied. The elimination of S^-- ions at high pH is caused by disturbing the hydrolytic equil. NaHS + H₂O = NaOH + H₂S by H₂S desorption. The governing factor of the speed in carbonation is speed of H₂S desorption in soln. At high temp. the S-- elimination is very much increased. The effect of CO₂ concn. on S^-- elimination is negligible. The compn. of the final carbonated soln., Na₂CO₃:NaHCO₃, is directly dependent on CO₂ concn., on the temp. of the soln., and to a lesser degree on the concn. of the soln.

Full paper in Portable Document Format: 121a48.pdf (in Slovak)

Chemical Papers 12 (1) 48–53 (1958)