RT Journal Article
T1 Growth of β-LiNaSO4 and Li2SO4 . H20: epitaxy and intergrowth phenomena
A1 Pina Martínez, Carlos Manuel
A1 Fernández Díaz, María Lourdes
A1 López García, José Ángel
A1 Prieto Rubio, Manuel
AB Isothermal crystallization in the system Na2SO4-Li2SO4-H20 was carried out at 50°C by "salting out" in a tetrametoxysilane (TMS) gel medium. Under these conditions the solid phases that can crystallize are Na2SO4, Li2SO4 . H20 and β-LiNaSO4, depending on the initial composition of the gel interstitial solution. When the initial [Na2SO4]/[Li2SO4] molar ratio in the interstitial solution is smaller than 1, first β-LiNaSO4 crystallizes and, subsequently, Li2SO4 • H20. The nucleation of Li2SO4 • H20 is always heterogeneous and occurs epitaxially on the surface of  β-LiNaSO4 crystals. Occasionally, successive heterogenous nucleation events promote the development of intergrowth phenomena. In this paper a detailed study of both epitactic growth and crystal morphology is worked out. Finally, the observed epitaxial relationships are interpreted on the ground of structural considerations.
PB Elsevier Science B.V.
SN 0022-0248
YR 1995
FD 1995
LK https://hdl.handle.net/20.500.14352/57120
UL https://hdl.handle.net/20.500.14352/57120
LA eng
DS Docta Complutense
RD 1 sept 2024