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Precipitation of calcium oxalate dihydrate (CROSBI ID 639235)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Šafranko, Silvija ; Bilić, Katarina ; Šter, Anamarija ; Marković, Berislav ; Kralj, Damir Precipitation of calcium oxalate dihydrate // 16th Ružička days "Today science - tommorow industry" / Jukić, Ante (ur.). Osijek: Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2016. str. 37-37

Podaci o odgovornosti

Šafranko, Silvija ; Bilić, Katarina ; Šter, Anamarija ; Marković, Berislav ; Kralj, Damir

engleski

Precipitation of calcium oxalate dihydrate

Pathological biomineralization is a process of unwanted formation of slightly soluble inorganic salts, in the soft tissues. The specific form of pathological biomineralization is urolithiasis. It is a chronic disease that leads to the formation of urinary stones in different parts of the urinary tract [1]. Urinary stones are mostly composed of calcium oxalate, and recently, the increased occurrence has been reported in industrialized countries. Calcium oxalate crystallizes in the form of hydrated salts: thermodynamically stable calcium oxalate monohydrate (COM, CaC2O4·H2O, whevellite), metastable calcium oxalate dihydrate (COD, CaC2O4·2H2O, weddellite) and metastable calcium oxalate trihydrate (COT, CaC2O4·3H2O, caoxite). Although the COD is a common constituent of the kidney stones, the mechanism and the conditions of its formation are still not fully understood. Therefore, there is a pronounced research interest in the process of its precipitation, as well as the scientific efforts to clarify its role in the pathophysiology of a stone creation. The aim of this study was to define the factors that favor the formation of COD in a number of model systems. For this purpose the hydrodynamic parameters (a mode of mixing of the reaction components), the concentration ratio of the calcium and citrate ions and the effect of temperature were extensively studied. The results indicate that the COD is preferably precipitated when the mechanical stirring was applied and with the addition of citrate ions, regardless of the temperature changes. Precipitation of the COD is also observed in the systems in which the magnetic stirring was applied, at higher concentrations of citrate and elevated temperatures.

precipitation ; calcium oxalate dihydrate ; mechanical stirring ; magnetic stirring ; citrat

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Podaci o prilogu

37-37.

2016.

objavljeno

Podaci o matičnoj publikaciji

16th Ružička days "Today science - tommorow industry"

Jukić, Ante

Osijek: Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku

978-953-6894-58-1

Podaci o skupu

International Scientific and Professional Conference 16th Ružička Days „Today Science – Tomorrow industry“.

poster

21.09.2016-23.09.2016

Vukovar, Hrvatska

Povezanost rada

Kemija