Design and test of a vacuum distillation method for determining carbon in sodium
Description
A method is described for determining total and carbonate carbon in sodium samples until 10 g. Sodium is removed by vacuum distillation at 3000C and the carbon in the residue is converted to carbon dioxide by combustion in a stream of air or thermic splitting in a stream of cover gas at 10000C. The carbon dioxide is measured manometrically. It is therefore not necessary to carry out calibration. Distillation and combustion rig are combined with inertgas filled transfer box. Therefore the sodium sample does not get into touch with air. Test of this method was carried out with Na2CO3 and WC. Carbon recoveries were for Na2CO3 between 103 and 107% and for WC between 92 and 96%. The blank value found being 9 μg C and sensitivity 3 μg C. (author)
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Additional details
Additional titles
- Original title (German)
- Aufbau und Erprobung einer Vakuumdestillationsmethode zur Bestimmung von Kohlenstoff in Natriumproben
Publishing Information
- Imprint Pagination
- 14 p.
- Report number
- ZfK--314
INIS
- Country of Publication
- German Democratic Republic
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 8329765
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON; CARBON DIOXIDE; DISTILLATION; MEDIUM VACUUM; QUANTITATIVE CHEMICAL ANALYSIS; SODIUM
- Descriptors DEC
- ALKALI METALS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL ANALYSIS; ELEMENTS; METALS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES