Sodium hexafluorosilicate (SFS) crystals were synthesized by precipitation
by the reaction of hydrofluorosilicic acid and sodium carbonate at a DA of
2.5 and 3.5 and a magnetic field of 5.5 T was applied immediately after pre
cipitation for 45 min at 20 degrees C. SEM, XRD and FTIR spectroscope exami
ned the crystals produced with and without a magnetic field. (C) 2000 Elsev
ier Science B.V. All rights reserved.