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Chlorine binding in saturation V-K chalk

J. Vašátko and Ľ. Stankovič

Slovak Academy of Sciences, Bratislava

 

Abstract: Chlorination and the insecticidal properties of the satn. V-K chalk produced from beet sugar defecation cake are described. In chlorination of the cake inorg. Cl- and ClO- and chlorinated amino compds. contg. active Cl bound on N are formed. There is a loss of active Cl in the presence of the org. matter and its cleavage products, with a further chlorination until pH is decreased to 9.4 from 10.4, which is a point change at which the cake is completely bleached. Then, to inhibit a further loss of active Cl, the cake is washed out by floating, and pH is decreased to 7.0. The tests on Musca domestica indicate that satn. V-K chalk is very effective as an insecticide.

Full paper in Portable Document Format: 1310a592.pdf (in Slovak)

 

Chemical Papers 13 (10) 592–601 (1959)

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