Thermal properties of aminopolycarboxylic acid solutions in the temperature range 20–80°C

Autor:	A. Z. Dakroury, M. B. S. Osman
Rok vydání:	1994
Předmět:	chemistry.chemical_classification chemistry.chemical_compound EGTA chemistry Sodium hydroxide Carboxylic acid Inorganic chemistry Nitrilotriacetic acid Ethylenediaminetetraacetic acid Aminopolycarboxylic acid Condensed Matter Physics Thermal diffusivity Heat capacity
Zdroj:	International Journal of Thermophysics. 15:675-686
ISSN:	1572-9567 0195-928X
DOI:	10.1007/bf01563793
Popis:	The thermal properties (thermal conductivity, thermal diffusivity, and volumetric heat capacity) of aminopolycarboxylic acids, nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), diet hylenetriaminepentaacetic acid (DTPA), triethylenetetraminehexaacetic acid (TTHA), 1,2-diaminocyclohexanetetraacetic acid (DCTA), and ethyleneglycol-bis-(2-aminoethylether) tetraacetic acid (EGTA), in dilute solutions of sodium hydroxide were measured in the temperature range 20–80°C. The measurements were performed with a hot-wire (strip) technique. The results show that the values of the thermal properties depend on the number of nitrogen atoms and the number of carboxyalkyl groups, which are bounded to the nitrogen atom, of the aminopolycarboxylic acid and also on the concentration of the investigated compounds in the medium and the temperatures. The mechanism of heat transfer is discussed and the role of convection is taken into consideration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::47fb4bb0b97af6f023e9ae80ab8820b5 https://doi.org/10.1007/bf01563793 Zobrazit plný text záznamu Full text from SpringerLink