Naslov
Precipitation of calcium carbonate in the presence of selected seawater constituents

Autori
Vdović, Neda ; Kralj, Damir

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6. EMINar. Book of abstracts / Tatjana. Bakran-Petricioli - Zagreb : EMINar, 1997, 77-77

Skup
6. EMINar

Mjesto i datum
Sali, Hrvatska, 02.04.1997. - 06.04.1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
precipitation; calcium carbonates; suspended mineral particles; organic matter

Sažetak
Spontaneous precipitation of calcium carbonates in the presence of foreign ions, selected organic substances and suspended mineral particles was investigated. In the model system total initial concentrations of calcium and carbonate species, as well as the ionic strength, were similar to those in the seawater. Vaterite was the only phase precipitated from model system. The addition of magnesium and strontium slightly retarded precipitation, while the addition of fulvic acid inhibited the process almost completely. In contrast, the addition of montmorillonite caused almost instantaneous precipitation of calcite, indicating montmorillonite as the suitable substrate for the overgrowth of this polymorph.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA