Sucrose crystals grown from aqueous solutions in the presence of Raffinose are elongated in the [010] direction, together with more and more simpler Morphologies, as higher is the additive concentration in the solution [Craff(sol)]. The Raffinose concentration inside the host crystal [Craff(cryst)] changes both with Craff(sol) and with the different growth sectors. The plot (Craff( cryst) vs Craff(sol)] at T = 40 °C and supersaturation 0,080 is not monoatomic , but can be approximated by two straigh lines with opposite slopes, below and above Craff(sol)= 4%, respectively, according with the strongest habit modifications. The differences between the Raffinose segregated in the complementary sectors (110) and (-1-10) reaches one order of magnitude, according with the strog different ability of surface adsorption on the corresponding faces.
Growth Morphology and Segregation of Sucrose Crystals Grown from Aqueous Solutions in the Presence of Raffinose.
SGUALDINO, Giulio;
2006
Abstract
Sucrose crystals grown from aqueous solutions in the presence of Raffinose are elongated in the [010] direction, together with more and more simpler Morphologies, as higher is the additive concentration in the solution [Craff(sol)]. The Raffinose concentration inside the host crystal [Craff(cryst)] changes both with Craff(sol) and with the different growth sectors. The plot (Craff( cryst) vs Craff(sol)] at T = 40 °C and supersaturation 0,080 is not monoatomic , but can be approximated by two straigh lines with opposite slopes, below and above Craff(sol)= 4%, respectively, according with the strongest habit modifications. The differences between the Raffinose segregated in the complementary sectors (110) and (-1-10) reaches one order of magnitude, according with the strog different ability of surface adsorption on the corresponding faces.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
