magistrsko delo
Luka Rifelj (Author), Janez Cerar (Mentor), Jurij Lah (Thesis defence commission member), Miha Lukšič (Thesis defence commission member)

Abstract

V okviru magistrskega dela smo po znanem postopku sintetizirali natrijevo sol fulerenheksamalonske kisline (FHMA), ki smo jo nato z ionsko izmenjavo pretvorili v njeno kislinsko obliko. Z nevtralizacijo kisline FHMA z raztopinami alkalijskih hidroksidov smo pripravili litijevo, natrijevo in cezijevo sol FHMA (LiFHM, NaFHM in CsFHM). Raztopino LiFHM s koncentracijo 0,005 mol COO-skupin / dm3smo pri treh različnih temperaturah (5,0 ºC; 25,0 ºC; 45,0 ºC) titrirali z 0,15 molarnimi raztopinami izbranih 1:1 alkalijskih (LiCl, NaCl, CsCl) in tetraalkilamonijevih (tetrametil-, tetraetil-, tetrapropil-, in tetrabutilamonijevih) kloridov, pri tem pa smo merili izmenjano toploto (z uporabo izotermnega titracijskega kalorimetra) in (samo pri 25,0 °C) električno prevodne (konduktometer) spremembe v titriranih raztopinah.

Keywords

raztopine;entalpije mešanja;fulerenatne soli;fulerenheksamalonska kislina;FHMA;izotermna titracijska kalorimetrija;ITC;konduktometrija;konduktometrične titracije;Onsagerjeva enačba;magistrska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [L. Rifelj]
UDC: 544.332:544.35(043.2)
COBISS: 1538298051 Link will open in a new window
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Other data

Secondary language: English
Secondary title: Enthalpies of mixing of fullerenate salts solutions with solutions of simple salts
Secondary abstract: As part of our master’s thesis a well-known procedure was used to synthesise sodium salt of fullerenehexamalonic acid (FHMA), which was then transformed into its acidicform by means of ion exchange. Lithium, sodium and caesium salts of FHMA were prepared by neutralising FHMA with solutionsof alkali hydroxides. Solution of LiFHM with concentration of 0.005mole COO-groups / dm3was titrated at three different temperatures (5.0 ºC; 25.0 ºC; 45.0 ºC) with selected alkali (LiCl, NaCl, CsCl) and tetraalkylammonium (tetramethyl-, tetraethyl-, tetrapropyl-, and tetrabutylammonium) chlorides, during which exchanged heat (by means of isothermal titration calorimeter) and (only at 25.0 ºC) electroconductivity (conductometer) changes were being measured.
Secondary keywords: enthalpies of mixing;fullerenehexamalonic salt;conductometry;Onsager equation;
Type (COBISS): Master's thesis/paper
Study programme: 1000375
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemija
Pages: 60 str.
ID: 11195173