Original scientific paper

A Combustion Tube Filling for the Determination of Carbon and Hydrogen in Fluorine Containing Compounds. I

M. Tonković ; Department of Physical Chemistry, Institute »Rud.er Boskovic«, Zagreb, Croatia, Yugoslavia
Š. Mesarić ; Department of Physical Chemistry, Institute »Rud.er Boskovic«, Zagreb, Croatia, Yugoslavia

Abstract

Combustion tube fillings containing titanium dioxide, tin
dioxide and thorium dioxide in combination with oxidation catalyst
- Korbl catalyst or copper oxide - are applied for the microdetermination
of carbon and hydrogen in organic fluorine compounds.
Various samples of pure thorium dioxide and thorium dioxide
on silica were examined and the measured retention capacities in
mg fluorine per gram thorium dioxide are given. The capacity
changes from 4.7 to 358 mg F/g Th02 depending on temperature
and on the effective surface area of the thorium dioxide packing.
A series of standards analyzed by this procedure had a
standard deviation for carbon 0.230/o and for hydrogen 0.180/o.
It has been found that thorium dioxide retains interfering
combustion products containing fluorine but not those containing
other halogens, sulphur or phosphor.

Keywords

Hrčak ID:

197323

URI

https://hrcak.srce.hr/197323

Publication date:

10.8.1971.

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