Stabilization of an Aqueous Solution of a Liquid Micro Fertilizer Containing Trilon B as a Chelating Agent. Structure of the Molecular Crystal of Sodium Carbamide Ethylenediaminetetraacetate Hydrate NaH3L1·(H2N)2CO·H2O

IF 1.1 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR Russian Journal of Coordination Chemistry Pub Date : 2024-12-08 DOI:10.1134/S1070328424600608

V. V. Semenov, N. V. Zolotareva, B. I. Petrov, N. M. Lazarev, E. V. Baranov

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Abstract

Chemical analysis methods were used to identify the causes for precipitation and fouling with a gray-green deposit of a vessel for the storage of liquid micro fertilizer consisting of ammonium heptamolybdate, potassium chloride, ammonium vanadate, boric acid, chromium trichloride, sodium selenate, and Trilon B as a chelating ligand. The precipitate represented the crystalline 1 : 1 complex of Trilon B with carbamide NaH₃L¹·(H₂N)₂CO·H₂O (H₄L¹ = ethylenediaminetetraacetic acid). The deposit on the vessel bottom and wall was formed upon transformation of the molybdenum complex Na₄(MoO₃)₂L¹·8H₂O into insoluble coordination polymer in an acid medium. Neutralization of the solution to pH 6–7 and a decrease in the concentration of Trilon B gave a violet micro fertilizer solution that was stable during storage. The molecular structure of the NaH₃L¹·(H₂N)₂CO·H₂O crystal was determined.

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含万亿B螯合剂的液体微肥料水溶液的稳定性研究。尿素乙二胺四乙酸钠水合物NaH3L1·（H2N）2CO·H2O的分子晶体结构

用化学分析方法确定了沉淀和污垢的原因，并发现了储存由七钼酸铵、氯化钾、钒酸铵、硼酸、三氯化铬、硒酸钠和作为螯合配体的万亿B组成的液体微肥料容器的灰绿色沉积物。沉淀为万亿B与尿素NaH3L1·（H2N）2CO·H2O （H4L1 =乙二胺四乙酸）晶体1:1配合物。在酸性介质中，钼配合物Na4(MoO3)2L1·8H2O转化为不溶性配位聚合物，形成容器底部和壁上的沉积物。将溶液中和至pH 6-7，并降低Trilon B的浓度，得到了在储存期间稳定的紫色微肥溶液。测定了NaH3L1·（H2N）2CO·H2O晶体的分子结构。

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来源期刊

Russian Journal of Coordination Chemistry 化学-无机化学与核化学

CiteScore

2.40

自引率

15.80%

发文量

审稿时长

7.2 months

期刊介绍： Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.