RESULTS OF X-RAY PHASE AND IR-SPECTRAL ANALYSIS OF AZOSUPERPHOSPHATES OBTAINED ON THE BASIS OF PHOSPHORITES OF CENTRAL KIZILKUM

Authors

Elyor Atashev, Urgench state university, Address: 14, Kh.Alimdjan str, Urgench city, 220100, Uzbekistan, E-mail: elyor.a@urdu.uz, Phone: +998 93 7427099;Follow
Maksud Jabbievich Jumaniyazov, Urgench state university, Address: 14, Kh.Alimdjan str, Urgench city, 220100, Uzbekistan;Follow
Sayfitdin Mukhitdinovich Tadjiev, Institute of General and Inorganic Chemistry of Academy of Sciences of the Republic of Uzbekistan, Address: 77A, Mirzo Ulugbek Street, Tashkent city, Republic of Uzbekistan.

Abstract

This article is devoted to the use of ammonium sulfate in the production of nitrogen-phosphorus fertilizers, which are widely used in agriculture today. In the research work, the possibilities of obtaining azo superphosphate are described in detail by the use of intensive technology based on low-grade phospharites of the Central KyzylKum. X-ray and IR-spectroscopic analyzes of a new type of NP-complex fertilizers obtained using a solution of ammonium sulfate in sulfuric acid are described in detail. The X-ray analysis of the obtained sample on the X-ray diffraction pattern of the azo-superphosphate fertilizer revealed the appearance of peaks in the interplanar spacing line (NH₄)₂SO₄ of ammonium sulfate and NH₄Н₂РO₄ of ammonium dihydrogen phosphate. It has been substantiated that in addition to the main nutrient components dicalcium phosphate and monocalcium phosphates, the sample also contains (NH₄)₂SO₄ and NH₄Н₂РO₄. The results of IR spectroscopic analyzes show that the process of decomposition of the CO₃^2- ion in the composition of phosphorites, peaks with high intensity formed by stretching vibrations, in the regions of 873.75 and 1417.68 cm^-1, were not detected in the IR spectra of the obtained sample and this proves that that the complete decomposition process is complete. Also, the formation of stretching vibrations of the H₂PO₄^- ion - 1215.15 cm^-1, the PO₄^3- ion - 532.35 cm^-1 and bending vibrations of the H₂PO₄^- ion - 1033.85 cm^-1 in the IR spectrum of the sample in this NH₄Н₂РO₄ sample and the formation of stretching vibrations of SO₄^2- ion 1436.97 cm^-1 confirmed the presence of (NH₄)₂SO₄.

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References

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Recommended Citation

Atashev, Elyor; Jumaniyazov, Maksud Jabbievich; and Tadjiev, Sayfitdin Mukhitdinovich (2021) "RESULTS OF X-RAY PHASE AND IR-SPECTRAL ANALYSIS OF AZOSUPERPHOSPHATES OBTAINED ON THE BASIS OF PHOSPHORITES OF CENTRAL KIZILKUM," Chemical Technology, Control and Management: Vol. 2021: Iss. 3, Article 2.
DOI: https://doi.org/10.51346/tstu-02.21.3-77-0015