Karakterizacija neznane kromove spojine

diplomsko delo

Urška Žunič (Author), Nives Kitanovski (Mentor)

Abstract

S pomočjo rezultatov analiz določenih fizikalno-kemijskih metod bom poskušala določiti sestavo neznanega vzorca, dobljenega po sledeči sintezni poti: Vodno raztopino kalijevega dikromata(VI) postavimo v ledeno kopel in ji med mešanjem počasi dodajmo presežek koncentrirane žveplove(VI) kisline. Nato ji počasi dodajamo etanol, prav tako v presežku in pazimo, da se temperatura ne dvigne preveč. Ko je dodan ves etanol, raztopino pustimo na sobni temperaturi, da se z izhlapevanjem topila izloči produkt. Kristale ločimo od preostale raztopine z nučiranjem.

Keywords

krom;kalijev kromov galun;vibracijska spektroskopija;elektronska spektroskopija;rentgenska praškovna difrakcija;meritve prevodnosti;magnetne meritve;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[U. Žunič]
UDC:	546.76(043.2)
COBISS:	125520643
Views:	41
Downloads:	2
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Characterization of an unknown chromium compound
Secondary abstract:	Using the results of analyzes of certain physicochemical methods, I will try to determine the composition of an unknown sample obtained by the following synthetic route: The potassium dichromate(VI) solution is placed in an ice bath and added the excess concentrated sulfuric acid(VI) while stirring. Then the excess of ethanol is added slowly while the solution is still being cooled. The temperature must not rise too much. Once all the ethanol has been added, the solution is left at room temperature.The crystals can are separated from the remaining solution.
Secondary keywords:	coordination compounds;potassium chromium alum;vibrational spectroscopy;electron spectroscopy;X-ray powder diffraction;conductivity measurements;magnetic measurements;Koordinacijske spojine;Univerzitetna in visokošolska dela;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000374
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, VSŠ Kemijska tehnologija
Pages:	35 str.
ID:	16354541