SOLID PHASE FORMATION AND SOLUTION CHEMISTRY OF NICKEL IN SOILS

Publisher Website
Google Scholar
Abstract
The probability of Ni-Fe2O4, NiAl2O4, Ni3(PO4)2 and Ni2SiO4 formation in soils was studied, using 21 mineral soils, 9 acidic and 12 alkaline, Ni, 100 .mu.g/ml as Ni(NO3)2, and 200 .mu.g/ml of P as Na3(PO4)2 were added to each soil suspension. Soil suspensions were shaken for 50 days after Ni addition. Suspensions were sampled at 1-, 7-, 28- and 50-day intervals. Ni, Fe, Al, Ca, Si, pH, EC [electrical conductivity] and P were determined in the aliquot samples. The activities of various ions were calculated. Experimental data supported the formation of NiFe2O4, but not the precipitation of Ni3(PO4)2, NiAl2O4, or Ni2SiO4 in soils.
Keywords

This publication has 2 references indexed in Scilit: