ISSN:
1572-9567
Keywords:
1,2-diaminocyclohexanetetraacetic acid
;
diethylenetriaminepentaacetic acid
;
ethylenediaminetetraacetic acid
;
ethyleneglycol-bis-(2-aminoethyl ether) tetraacetic acid
;
heat capacity
;
hot-wire technique
;
nitrilotriacetic acid
;
thermal conductivity
;
thermal diffusivity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01563793
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