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undergraduate thesis
Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu
2014. urn:nbn:hr:182:789299
Dobrić, Matej
Josip Juraj Strossmayer University of Osijek
Department of Chemistry
Department of Analytical, Organic and Applied Chemistry

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Dobrić, M. (2014). Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:789299

Dobrić, Matej. "Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2014. https://urn.nsk.hr/urn:nbn:hr:182:789299

Dobrić, Matej. "Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2014. https://urn.nsk.hr/urn:nbn:hr:182:789299

Dobrić, M. (2014). 'Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:182:789299

Dobrić M. Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2014 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:182:789299

M. Dobrić, "Određivanje anionskih tenzida titracijom u dvije faze u realnom sustavu", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2014. Available at: https://urn.nsk.hr/urn:nbn:hr:182:789299

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Metadata
TitleOdređivanje anionskih tenzida titracijom u dvije faze u realnom sustavu
Title (english)Determination of anionic surfactants by the two-phase titration in the real system
AuthorMatej Dobrić
MentorMirela Samardžić (mentor)
MentorOlivera Galović (komentor)
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
(Department of Analytical, Organic and Applied Chemistry)
Osijek
Defense date and country2014-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Tenzidi su površinski aktivne tvari koje smanjuju napetost površine. Sastoje se od „glave“ (hidrofilni dio) i „repa“ (hidrofobni dio). Rep čini dugi ugljikovodični lanac, dok su glave pozitivne, negativne ili neutralne grupe. Tenzidi se dijele na kationske, anionske, neionske i amfolitske tenzide. Glave anionskih tenzida čine negativno nabijene grupe kao što su karboksilatni ion (-COO-), sulfonatni ion (-SO3-), sulfatni ion (-OSO32-). Anionski tenzidi su visoko-pjeneće aktivne tvari, dobro se raspršuju u vodi i sastavni su dio praškastih deterdženata kao i deterdženata za pranje suđa. Anionski tenzidi mogu se analizirati titracijskim metodama, spektrofotometrijskim metodama, kromatografskim metodama i analitikom s injektiranjem u protok. Titracijske se metode zasnivaju na stvaranju ionskih asocijata između anionskog tenzida i kationskog titranta. Titracija u dvije faze je referentna metoda za određivanje anionskih tenzida. Spada u vizualnu titraciju kod koje je korišten Hyamin 1622, kao kationski titrant, koncentracije 4,16 x 10-3 mol/L uz otopinu miješanog indikatora. Za njegovu standardizaciju korištena je standardna otopina natrijeva dodecil sulfata (NaDDS), koncentracije 4 x 10-3 mol/L. Nakon standardizacije provedene su titracije realnih uzoraka koji prema deklaraciji sadrži manje od 5 % , 5 – 15 % i 15 – 30 % anionskih tenzida.
Abstract (english)
Surfactants are surface active agents that lower the surface tension. They consist of a "head" (hydrophilic part) and "tail" (hydrophobic part). The tail consists of a long hydrocarbon chain, while the heads of positive, negative or neutral groups. Surfactants are classified as cationic, anionic, nonionic surfactants and ampholitic. Heads of anionic surfactants are formed of negatively charged groups such as carboxylate ion (-COO-), a sulfonate ion (-SO3-), sulphate ion (-OSO32-). Anionic surfactants are high-foaming active ingredients, are well dispersed in water and are an integral part of powder detergents as well as detergents for dishwashing. Anionic surfactants can be analyzed by titration method, by using spectrophotometric methods, chromatographic methods and by flow injection analysis. Titration methods are based on the creation of ion associates between anionic surfactants and cationic titrant. Two-phase titration is the reference method for the determination of anionic surfactants. It includes a visual titration with Hyamin 1622, a cationic titrant (concentration 4.16 x 10-3 mol / L) with a mixed indicator solution. A standardization of Hyamin 1622 was done by using a standard solution of sodium dodecyl sulfate (NaDDS), concentration of 4 x 10-3 mol / L. After standardization titrations were performed in real patterns that by the declaration contains less than 5 %, 5 – 15 % and 15 – 30 % of anionic surfactant.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:789299
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
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Created on2016-07-13 10:46:43