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undergraduate thesis
Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija
2019. urn:nbn:hr:128:475513
Čović, Lucija
Karlovac University of Applied Sciences
The Department of Food Processing Technology

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Čović, L. (2019). Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija (Undergraduate thesis). Karlovac: Karlovac University of Applied Sciences. Retrieved from https://urn.nsk.hr/urn:nbn:hr:128:475513

Čović, Lucija. "Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija." Undergraduate thesis, Karlovac University of Applied Sciences, 2019. https://urn.nsk.hr/urn:nbn:hr:128:475513

Čović, Lucija. "Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija." Undergraduate thesis, Karlovac University of Applied Sciences, 2019. https://urn.nsk.hr/urn:nbn:hr:128:475513

Čović, L. (2019). 'Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija', Undergraduate thesis, Karlovac University of Applied Sciences, accessed 28 December 2024, https://urn.nsk.hr/urn:nbn:hr:128:475513

Čović L. Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija [Undergraduate thesis]. Karlovac: Karlovac University of Applied Sciences; 2019 [cited 2024 December 28] Available at: https://urn.nsk.hr/urn:nbn:hr:128:475513

L. Čović, "Ispitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija", Undergraduate thesis, Karlovac University of Applied Sciences, Karlovac, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:128:475513

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Metadata
TitleIspitivanje inhibicijskog djelovanja 1,8 – cineola na koroziju aluminija
Title (english)Investigation of inhibition efficiency of 1,8-cineole on aluminium corrosion
AuthorLucija Čović
MentorJasna Halambek (mentor)
Committee memberJasna Halambek (predsjednik povjerenstva)
Committee memberTomislav Božić (član povjerenstva)
Committee memberInes Cindrić (član povjerenstva)
GranterKarlovac University of Applied Sciences
(The Department of Food Processing Technology)
Karlovac
Defense date and country2019-03-05, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
U ovom radu ispitana je inhibicijska djelotvornost 1,8-cineola na koroziju aluminija u modelnim otopinama 1% C6H8O7, 1% C6H8O7 + 1% NaCl i 1% C6H8O7 + 1% NaCl + 1% C6H8O6. Ispitivanja provedena gravimetrijskom metodom potvrdila su inhibicijsko djelovanje 1,8-cineola u svim ispitivanim modelnim otopinama, a najveći stupanj zaštite aluminija postignut je u otopini 1% limunske kiseline dodatkom 300 ppm 1,8-cineola i to od 82,8 %. Volumetrijskim određivanjem utvrđeno je da se koncentracija otopljenog aluminija u otopinama kreće u rasponu od 2,16 mg/L do maksimalno 54 mg/L. Na osnovi strukture molekule 1,8-cineola može se pretpostaviti da se ove molekule vežu procesom kemijske adsorpcije na površinu aluminija stvarajući zaštitni sloj. U svim ispitivanim otopinama 1,8-cineol štiti aluminij od korozivnog djelovanja otopina i može se primijeniti u prehrambenoj industriji kao učinkovit inhibitor korozije aluminija.
Abstract (english)
This thesis evaluates inhibition efficiency of 1,8 – cineole on aluminium corrosion in model solutions of 1% C6H8O7, 1% C6H8O7 + 1% NaCl i 1% C6H8O7 + 1% NaCl + 1% C6H8O6. Gravimetric analysis confirmed the inhibition activity of 1,8-cineole in all tested model solutions, and the highest degree of aluminium protection was achieved in 1% citric acid solution by adding 300 ppm 1,8-cineol and it was 82.8%. By volumetric determination, the concentration of dissolved aluminium in solutions ranges from 2.16 mg / L to 54 mg / L. Based on the structure of the 1,8 – cineole molecule, it can be assumed that these molecules can be chemically adsorbed on the aluminium surface creating a protective layer. In all tested solutions 1,8- cineole protects aluminium from the corrosion activity of solutions and can be used in the food industry as an effective corrosion inhibitor for aluminium.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:128:475513
Study programmeTitle: Food processing technology; specializations in: Milk processing, Brewing industry
Course: Milk processing
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (stručni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-04-11 13:30:47