Effect of Organic Additives on Synthesis and Characterization of Nano Crystalline StrontiumMalonate

A basic study was carried out to synthesis of nano crystalline strontium
malonate and to understand the crystallization of strontium malonate without
and with addition of sodium dodecyl sulfate surfactant (SDS) and poly ethylene
glycol (PEG). Induction time was measured under different supersaturations
ranging from 2.6 to 4.3. This is the time elapsed between the achievement of
supersaturation and the appearance of a solid phase. The results show that, the
induction time decreases exponentially with increasing the Supersaturation. On
the other hand, the induction time is decreased with addition of SDS and PEG.
Interestingly, with addition of the SDS and PEG, the agglomerated samples are
investigated by using Scanning Electron Microscopy (SEM) investigation, the
crystalline sizes of the formed crystals without and with SDS and PEG are 244
nm, 222 nm and 121 nm, respectively.