Naslov
Effect of Anionic Surfactants on Crystal Growth of Calcium Hydrogen Phosphate Dihydrate

Autori
Bujan, Marija ; Sikirić, Maja ; Filipović-Vinceković, Nada ; Vdović, Neda ; Garti, Nissim ; Furedi-Milhofer, Helga

Izvornik
Langmuir (0743-7463) 17 (2001), 21; 6461-6470

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
calcium hydrogen phosphate dihydrate; crystal growth; mechanisms of additive interactions

Sažetak
The effect of anionic surfactants: single chained sodium dodecyl sulfate (SDS), asymmetric double chained sodium bis(2-ethylhexyl) sulfosuccinate (AOT), and two-headed, disodium oleoamido PEG-2 sulfosuccinate (PEG) on crystallization process of calcium hydrogenphosphate dihydrate (DCPD) was investigated. All surfactants, depending on the type and actual concentration, showed inhibitory effects on the overall crystallization process. Below the critical micelle concentration (cmc) electrostatic adsorption of surfactant anions on lateral crystal faces inhibited crystal growth and changed crystal morphology. Above the cmc SDS and AOT caused phase changes, i.e. a mixture of DCPD and octacalcium phosphate (OCP) was formed.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA