ABSTRACT

Precise systematic osmotic coefficient measurements have been carried out for aqueous solutions of different carbohydrates and polyols by using vapor pressure osmometry (VPO) method. Herein, in order to investigate the effect of structure and stereochemistry of solutes on the vapor-liquid equilibria behavior of aqueous solutions, we studied the osmotic properties of binary aqueous sugar solutions containing pentose monosaccharides (xylose, ribose and arabinose), hexose monosaccharides (glucose, fructose, galactose and mannose), disaccharides (sucrose, maltose and lactose), trisaccharide (raffinose) and polyols (sorbitol, xylitol and maltitol) at 308.15 K and in the extended concentration range. From the experimental osmotic coefficient data, the values of water activity and vapor pressure of the investigated solutions were obtained.

Compounds

#	Formula	Name
1	C5H10O5	D-xylose
2	H2O	water
3	C5H10O5	L-arabinose
4	C5H12O5	xylitol
5	C5H10O5	D-ribose
6	C6H12O6	(+)-galactose
7	C6H12O6	D-fructose
8	C6H12O6	D-glucose
9	C6H12O6	D-mannose
10	C12H22O11	D-sucrose
11	C6H14O6	D-sorbitol
12	C12H22O11	4-O-.beta.-D-galactopyranosyl-D-glucose
13	C12H22O11	D-maltose
14	C18H32O16	D-raffinose
15	C12H24O11	4-O-.alpha.-D-glucopyranosyl-D-glucitol

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	1 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 1; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	20
POMD	3 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	18
POMD	4 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 4; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	20
POMD	5 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 5; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	20
POMD	6 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 6; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	18
POMD	7 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 7; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	21
POMD	8 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 8; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	25
POMD	9 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 9; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	12
POMD	10 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 10; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	23
POMD	11 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 11; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	21
POMD	12 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 12; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	8
POMD	13 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 13; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	18
POMD	14 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 14; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	8
POMD	15 2	Osmotic coefficient ; Liquid	Molality, mol/kg - 15; Liquid	Temperature, K; Liquid	Liquid Gas	omometer	14

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Osmotic properties of carbohydrate aqueous solutions

Ebrahimi, N.[Nosaibah], Sadeghi, R.[Rahmat]

ABSTRACT