PL9640B1 - Disinfectants and seed dressings. - Google Patents

Description

The mercury compounds of multivalent phenols of the benzene series could not be used so far as disinfectants and seed dressings, because most of these compounds were unknown, and where a similar compound was described (resorcinol - Hg. Dimroth B. 35, 2865) Its use is prevented by its instability. It has now been found that the mercury of the benzene series polynoxies occurs so quickly at ordinary temperature that it is sufficient to dissolve the dry mixture of ingredients in water to achieve the desired conversion. The very troublesome separation of phenolic mercury compounds according to the methods known to date, combined with losses and requiring multiple operations, is prevented in the context of the present invention by the fact that the dry mixture of components is dissolved in water in a manner very simple; When the mixture comes into contact with water, the mercury is completely bonded with the corresponding phenol, so that when the sodium liquor is added, the mercury oxide does not settle. Table salt or a similar agent may be added to accelerate dissolution. As a result of the acidity of the mercury salts used, and sometimes of the phenols as well, the mixtures, of course, show a weak acid reaction. In cases where it is not desirable in practice, the acidic reaction can be removed by adding alkali, for example soda, and thus obtain a mixture with a completely neutral reaction. In addition, it is possible to combine it with other water-soluble disinfectants. Compared to the known phenolic mercury compounds, these new mixtures have the advantage of being odorless. However, not only the mixtures themselves, but also their aqueous solutions are colorless and stable; they can be heated from 95 to 100 ° C within a few hours without compromising their durability. For the best possible mixing of the ingredients, it is recommended that the clear solution is evaporated to dryness and the residue powdered. The new mixtures have proved in disinfecting practice as very active seed dressings, destroying pests of animal and plant origin. Measures de- Example I. 11 part. wt. rezorcyny 27 n "sublimatu PL

Claims (1)

Patent claims. 1. Method for the preparation of disinfectants and seed dressings, characterized by the fact that polyvalent phenols of the benzene series are mixed with mercury compounds, with or without the addition of salts, which increase the solubility of the mixture in water, 2. An embodiment of the method according to / claim The process of claim 1, wherein alkali is added to the mixtures. - infectives which have so many advantages have not been known so far in the group of phenolic mercury compounds. This shortcoming, so often felt, is now filled. The possibility of using similar compounds could not be foreseen, because phenolic mercury compounds are generally sparingly soluble and could be dissolved only after adding tartar, and according to Dimrothl's data (B. 35, 2865) it was impossible to it was expected that mixtures of mercury with resorcinol, and hence with other compounds of the benzene series, or their aqueous solutions, would be stable. It is thoroughly rubbed into a powder and mixed. 3. An embodiment of the method according to claim A method according to any one of claims 1 and 2, characterized by the fact that other, still water-soluble, bacterial and fungicidal agents are added to the mixtures. L G, F ar ben ind us tr i e Aktiengesellschaft, Zastepca: M, Skrzypkowski, patent attorney. Example II. 5.5 parts wt. the resorcinol is ground and mixed like the 31.8 "mercury acetate previously. Example III. 24.8 pcs. wt. J-methyl-2,6-dioxybenzene 27.0 pts. wt. mercuric chloride 27.0 parts wt. table salt. Example IV. 12.6 pcs. wt. pyrogallol 27.1 p. wt. sublimate 30.0 pcs. wt. kitchen salt. Example V. 11.0 parts wt. resorcinol 27.0 p. wt. sublimate 30.0 pcs. wt. potassium chloride. 10.0 pcs. wt. copper sulfate crystal machined as before machined as described above are machined as in the other examples. Printed by L, Boguslawski, Waiszawa. PL