Enhancement of the metastable zone width in ammonium dihydrogen ortho phosp
hate (ADP) was achieved by the addition of 1 mol% of the chelating agent et
hylenediaminetetra acetic acid (EDTA) to ADP solution. The metastable zone
width studies were conducted and the nucleation parameters were calculated
from the measurements of the dependence of the metastable zone width on the
cooling rate. (C) 2000 Elsevier Science B.V. All rights reserved.