Hydroxy-containing agents for chelating metal ions and a process

Details Hydroxy-containing agents for chelating metal ions and a process Hydroxy-containing agents for chelating metal ions and a process

1975-04-14

1978-09-26

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260429C, 260429J, 260464, 260465D, 260465E, 260566F, 260509, 562451, 260574, 562448, C07F 1502

Patent

active

041169913

ABSTRACT:
A chelating agent of the formula: ##STR1## wherein R.sub.1 through R.sub.5 are each selected from the group which consists of hydrogen, methyl, ethyl and propyl;
S.sub.1 and S.sub.2 are each selected from the group which consists of hydrogen, --CH.sub.2 CH.sub.2 OH and alkyl having 1 to 12 carbon atoms;
n is a whole number 1 through 4;
Z.sub.1 through Z.sub.8 are substituents each selected from the group which consists of alkyl, alkoxyl, carboxy, formyl, acyl, carboxy substituted by alkyl, carboxamido, hydroxyl, amino, nitro, halo, and sulfo;
Y.sub.1 is selected from the group which consists of --COOM.sub.2 and --CN;
Y.sub.2 is selected from the group which consists of --COOM.sub.3 and --CN; and
M.sub.1 through M.sub.4 are selected from the group which consists of hydrogen, ion, an alkali metal ion, ammonium and ammonium substituted by alkyl 1 to 4 times.

REFERENCES:
patent: 2921847 (1960-01-01), Knell et al.
patent: 3095297 (1963-06-01), Rembe
patent: 3248410 (1966-04-01), Berenbaum
patent: 3567752 (1971-03-01), Israily
patent: 3592830 (1971-07-01), Israily
patent: 3711525 (1973-01-01), Hennart
patent: 3780099 (1973-12-01), Scanlon
patent: 3780100 (1973-12-01), Scanlon

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