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Vol. 35 No. 9 (2023): Vol 35 Issue 9, 2023

Copyright (c) 2023 Murodjon Samadiy

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Solubility Studies of Sulfates of Copper, Zinc and Cobalt in Phosphoric Acid at 30 ºC

https://doi.org/10.14233/ajchem.2023.28499
Murodjon Samadiy
Department of Chemical Technology of Inorganic Substances, Yangiyer branch of Tashkent Chemical Technological Institute, 1 Tinchlik str., Yangiyer, Uzbekistan
https://orcid.org/0000-0003-4467-291X
DILBAR RAMAZONOVA
Department of Chemical Technology of Inorganic Substances, Yangiyer branch of Tashkent Chemical Technological Institute, 1 Tinchlik str., Yangiyer, Uzbekistan
https://orcid.org/0000-0002-0232-0185
SHAVKAT UMAROV
Jizzakh Polytechnic Institute, 4 Islom Karimov st., 130100 Jizzakh, Uzbekistan
https://orcid.org/0000-0002-7184-7802
AISHOLPAN SHAMISHOVA
Termez Institute of Agrotechnologies and Innovative Development, 288a I.Karimov st., 191200, Termez, Uzbekistan
https://orcid.org/0009-0009-7417-9465
KHILOLA MAMATOVA
Gulistan State Pedagogical Institute, 4 Gulistan st., 120204 Gulistan, Uzbekistan
https://orcid.org/0009-0000-9559-0477
NURBEK AYAKULOV
Gulistan State Pedagogical Institute, 4 Gulistan st., 120204 Gulistan, Uzbekistan
https://orcid.org/0000-0002-5988-1207
MURODJON SAMADIY
Department of Chemical Technology of Inorganic Substances, Yangiyer branch of Tashkent Chemical Technological Institute, 1 Tinchlik str., Yangiyer, Uzbekistan
https://orcid.org/0000-0003-4467-291X

Corresponding Author(s) : Murodjon Samadiy

samadiy@inbox.ru

Asian Journal of Chemistry, Vol. 35 No. 9 (2023): Vol 35 Issue 9, 2023

Abstract

Present study reports the isothermal experiments conducted at 30 ºC to ascertain the solubility of copper, zinc and cobalt sulfates in phosphoric acid. The solubility diagram of CuSO4-H3PO4-H2O system is shown to have one branch, this is equivalent to the discharge of copper sulfate pentahydrate into the equilibrium solid phase. The solubility diagrams of zinc and cobalt sulfates have two branches of salt crystallization, corresponding to the release of hexahydrates and monohydrates of zinc and cobalt with increasing phosphoric acid content, saturated solutions in the ZnSO4-H3PO4-H2O and CoSO4-H3PO4-H2O systems become more viscous and denser, reaching a  maximum at the transition point, while these indicators in the CuSO4-H3PO4-H2O system only increase.

Keywords

sulfates of copper phosphoric acid isothermal zinc cobalt
Samadiy, M., RAMAZONOVA, D., UMAROV, S., SHAMISHOVA, A., MAMATOVA, K., AYAKULOV, N., & SAMADIY, M. (2023). Solubility Studies of Sulfates of Copper, Zinc and Cobalt in Phosphoric Acid at 30 ºC. Asian Journal of Chemistry, 35(9), 2285–2288. https://doi.org/10.14233/ajchem.2023.28499
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