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Vol. 12 No. 09 (2025)
International Multidisciplinary Journal for Research & Development

Articles

SOLUBILITY POLYTHERM IN THE SYSTEM Ca(ClO3)2·4CO(NH2)2- ClCH2COOH·(HOC2H4)3N-H2O -H2O

Published 2025-09-18

  • K.A. Turaev, D.A. Kuylieva,- Zh.Sh. Bobozhnov, E.S. Khusanov, U.Kh. Pardaev.

K.A. Turaev, D.A. Kuylieva,- Zh.Sh. Bobozhnov, E.S. Khusanov, U.Kh. Pardaev.
Karshi State Technical University, Samarkand State Pedagogical Institute, Spitamen Street, No. 166, Samarkand, Uzbekistan

Abstract

 Background. Cotton growing is one of the most important agricultural sectors in Uzbekistan. To ensure high-quality harvesting of raw cotton in a short time, defoliation is an agronomic measure. As a result of defoliant action, leaf fall improves air circulation among cotton rows, allowing sunlight to fall directly on the developing bolls. Therefore, special attention is paid to the production of low-toxicity, highly effective defoliants.

Aim of the Study. The aim of the study is to physicochemically substantiate the process of producing an effective defoliant based on calcium tetracarbamidochlorate and triethanolamine chloroacetate.

Methodology. To physicochemically substantiate the process for producing a complex cotton defoliant, data were obtained on the solubility and rheological properties of solutions in systems containing calcium tetracarbamidochlorate and triethanolamine chloroacetate. Visual-polythermal and pycnometric methods were used.

Scientific novelty. For the first time, the solubility of a system consisting of calcium tetracarbamidochlorate, triethanolamine monochloroacetate, and water was studied. Based on binary systems and internal sections of polytherms, a polythermal solubility diagram was constructed for the Ca(ClO3)2·4CO(NH2)2 - ClCH2COOH·(HOC2H4)3N-H2O system in the temperature range from -25.0 to 65.0°C. The phase diagram delineates the crystallization fields of the starting materials and the new compound CH2ClCOOH·Ca(ClO3)2·(C2H4OH)3N.

Results obtained. In the studied system, the crystallization fields of ice, Ca(ClO3)2∙4CO(NH2)2∙2H2O, ClCH2COOH·(HOC2H4)3N, and the new compound CH2ClCOOH·Ca(ClO3)2·(C2H4OH)3N were delineated.

Keywords

calcium tetracarbamidochlorate, triethanolamine monochloroacetate, solubility diagram.

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References

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