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Solubility in the section of a complex aqueous system consisting of chloroethylphosphonates, ammonium phosphate, and magnesium chlorate was studied in the temperature range from –66.8 to 12.4°C. A polythermal phase diagram was constructed, on which the crystallization fields of ice, hexa-, tetra-, and bihydrate magnesium chlorate, and drug "Nazhot" were delimited. The composition of the latter was [21% ClCH2CH2PO(OH)2⋅NH3 + 11% ClCH2CH2PO(OH)2⋅2NH3 + 12% NH4H2PO4 + 56% H2O]. In addition, crystallization fields of compound chloroethylphosphonate ammonium monochlorate NH4CIO3⋅CICH2CH2HPO3NH4 was also determined. The composition of the latter compound was confirmed by chemical and physicochemical analyses. [ABSTRACT FROM AUTHOR] more...

Mutual effect of components in complex aqueous system comprising calcium chlorate, ammonium dihydrogen phosphate, and ammonium chloroethylphosphonates has been studied. Polythermal diagram of system solubility has been built in the temperature range from –40.3 to 68.0°C. Phase diagram of system solubility demarcates crystallization fields for ice, calcium chlorate hexa-, tetra-, and dihydrate, and compound of composition NH4ClO3·ClCH2CH2HPO3NH4. The compound has been isolated from supposed crystallization field and has been identified by chemical and physicochemical analysis. To provide foundation for the process of preparation of efficient stimulant and mild defoliant based on calcium chlorate and Nazhot preparation, rheological properties of components in the system Ca(ClO3)2–[21% ClCH2CH2PO(OH)2⋅NH3 + 11% ClCH2CH2PO(OH)2⋅2NH3 + 12% NH4H2PO4 + 56% H2O]–H2O have been studied. Composition–property diagram has been built for the system. [ABSTRACT FROM AUTHOR] more...

Background. It is known that due to plant diseases, seed treatment before sowing is necessary, because for this reason, up to 2.96% of the raw cotton crop per year is lost. Etching with one preparation, with a single fungicidal activity, does not lead to a positive effect. Therefore, it is necessary to rely on a rational combination of fungicides, insecticides, and plant growth stimulants. Purpose: to evaluate the biological effectiveness of seed treaters, based on the identification of the most promising, biologically active drugs. Methodology. Laboratory experiments on germination and germination of cotton seeds. Biological activity was evaluated according to the indicators of sowing qualities of UzNIIKh. Originality. For the first time, a biological assessment of new synthesized seed dressing compounds was given. Findings. The selection of effective compounds was carried out, the optimal concentrations of protectants were identified, from the action of which no toxic effect was observed. [ABSTRACT FROM AUTHOR] more...