Chemistry: fertilizers – Processes and products
Patent
1975-07-03
1976-09-21
Spear, Jr., Frank A.
Chemistry: fertilizers
Processes and products
71DIG2, 260429J, 260439R, C07F 1502
Patent
active
039817121
ABSTRACT:
Compositions and methods useful for the treatment of iron deficiencies in plant utilizing new iron complexes of ethylene-bis(.alpha.-imino-2-hydroxyaryl-acetic acids) containing sulfonic acid groups are disclosed in which the molar ratio of iron to ligand is from about 1.1:1 to 3:1. These complexes are stable at pH values of from about 6.0 to 9.0.
REFERENCES:
patent: 2824128 (1958-02-01), Dexter
patent: 3028407 (1962-04-01), Knell et al.
patent: 3711525 (1973-01-01), Hennart
Petree Harris E.
Stutts Joseph W.
Ciba-Geigy Corporation
Jorda Karl F.
Lander Ferris H.
Spear, Jr. Frank A.
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