ABSTRACT

Infinite dilution binary diffusion coefficients (D12) were determined for 10 R-amino acids, glycine, alanine, R-aminon- butyric acid, norvaline, valine, norleucine, leucine, isoleucine, alloisoleucine, and tert-leucine in water over a temperature range from (293.2 to 333.2) K with the Taylor dispersion technique. At 298.2 K, the literature data for the two R-amino acids alloisoleucine and tert-leucine are not available, whereas the determined D12 values of the others are in good agreement with the data reported previously within the experimental errors of ( 2.0 %. The D12 values for all R-amino acids studied were well-represented by two simple correlations, and the accuracies for the correlations were examined for each R-amino acid.

Compounds

#	Formula	Name
1	C6H13NO2	DL-tert-leucine
2	H2O	water
3	C2H5NO2	2-aminoacetic acid
4	C3H7NO2	(S)-2-aminopropanoic acid
5	C4H9NO2	(.+-.)-.alpha.-aminobutyric acid
6	C5H11NO2	(S)-2-aminopentanoic acid
7	C5H11NO2	L-valine
8	C6H13NO2	2-aminohexanoic acid
9	C6H13NO2	L-leucine
10	C6H13NO2	2-amino-3-methylpentanoic acid
11	C6H13NO2	allo-L-isoleucine

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	3 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 3; Liquid	Liquid	Taylor dispersion method	6
POMD	4 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 4; Liquid	Liquid	Taylor dispersion method	6
POMD	5 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 5; Liquid	Liquid	Taylor dispersion method	6
POMD	6 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 6; Liquid	Liquid	Taylor dispersion method	6
POMD	7 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 7; Liquid	Liquid	Taylor dispersion method	6
POMD	8 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 8; Liquid	Liquid	Taylor dispersion method	6
POMD	9 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 9; Liquid	Liquid	Taylor dispersion method	6
POMD	10 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 10; Liquid	Liquid	Taylor dispersion method	6
POMD	11 2	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 11; Liquid	Liquid	Taylor dispersion method	6
POMD	2 1	Binary diffusion coefficient, m2/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Taylor dispersion method	6

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Infinite Dilution Binary Diffusion Coefficients of Several r-Amino Acids in Water over a Temperature Range from (293.2 to 333.2) K with the Taylor Dispersion Technique

Umecky, T.[Tatsuya], Kuga, T.[Tomoyuki], Funazukuri, T.[Toshitaka]

ABSTRACT