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undergraduate thesis
Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata
2018. urn:nbn:hr:182:304215
Bolić, Filip
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry

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Bolić, F. (2018). Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:304215

Bolić, Filip. "Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:304215

Bolić, Filip. "Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2018. https://urn.nsk.hr/urn:nbn:hr:182:304215

Bolić, F. (2018). 'Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 13 February 2025, https://urn.nsk.hr/urn:nbn:hr:182:304215

Bolić F. Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2018 [cited 2025 February 13] Available at: https://urn.nsk.hr/urn:nbn:hr:182:304215

F. Bolić, "Mehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:182:304215

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Metadata
TitleMehanokemijska sinteza kalcijeva oksalata iz kalcijeva sulfata
Title (english)Mehanochemical synthesis of calcium oxalate from calcium sulfate
AuthorFilip Bolić
MentorIgor Đerđ (mentor)
MentorAnamarija Stanković (pomoć pri izradi, neposredni voditelj)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of General, Inorganic and Physical Chemistry and Methodology of Chemistry)
Osijek
Defense date and country2018-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Inorganic Chemistry
Abstract
Kalcijevi oksalati su sastavni dio bubrežnih kamenaca i oni su kalcijeve soli oksalne kiseline. Sve više ljudi u današnje vrijeme ima problema sa bubrežnim kamencima stoga su istraživanja na tu temu sve intenzivnija, najviše se istražuju procesi taloženja kalcijevih oksalata te načini njihova mogućeg uklanjanja ili prevencije njihova nastanka. U medicinskom smislu ovaj problem se naziva urolitijaza ili nefrolitijaza. Ovisno o uvjetima, kalcijev oksalat može kristalizirati u tri hidratna oblika, kalcijev oksalat monohidrat (COM) koji je termodinamički najstabilniji, te metastabilni dihidrat (COD) i trihidrat (COT) koji se vrlo rijetko može naći u sastavu bubrežnih kamenaca. U ovom radu je cilj bio provjeriti koji hidratni oblik kalcijeva oksalata nastaje mehanokemijskom sintezom i to na dva načina, bez dodatka otapala (samo praškasti reaktanti) i s dodatkom minimalne količine otapala, u ovom slučaju vode. Dobiveni rezultati su obrađeni i interpretirani FT-IR spektroskopijom, termogravimetrijskom analizom te optičkom mikroskopijom.
Abstract (english)
Calcium oxalates are components of kidney stones and they are calcium salts of oxalic acid. Nowadays more and more people have problems with kidney stones therefore research on this subject are more intensive, mainly precipitation processes of calcium oxalate and the ways of their possible removal or prevention of crystal growth. In medical way this problem is known as urolithiasis of nefrolithiasis. Depending on conditions, calcium oxalate cristallizes in three hidrate forms, calcium oxalate monohydrate (COM) which is thermodynamically most stable, and metastable dihydrate (COD) and trihydrate (COT) which is the rarest to be found in kidney stone composition. The goal of this work was to see which hydrate form of calcium oxalate will form by mechanochemical synthesis and it was done in two ways, without adding minimum quantity of solvent (only pulverised reactants) and with adding a minimum quantity of water, in this case water. Results were processed and interpreted with FT-IR spectroscopy, thermogravimetric analysis and optical microscopy.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:304215
Study programmeTitle: Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2018-12-14 10:57:02