Disodium salt of trimercapto-s-triazine hexahydrate, and method

Details Disodium salt of trimercapto-s-triazine hexahydrate, and method Disodium salt of trimercapto-s-triazine hexahydrate, and method

1990-08-17

1991-12-24

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D25138

Patent

active

050754440

ABSTRACT:
The disodium salt of trimercapto-s-triazine hexahydrate (TMT-Na.sub.2.6H.sub.2 O) which has a considerably higher water solubility than previously known TMT sodium salts. It is used for separating heavy metals from aqueous phase, especially from waste water.
TMT-Na.sub.2.6H.sub.2 O is prepared by reacting TMT-Na.sub.3 .9H.sub.2 O, available from cyanuric chloride, with trimercapto-s-triazine (TMT-Ha.sub.3) in a molar ratio of 2-2.1 to 1 in aqueous medium with subsequent crystallization of the TMT-Na.sub.2 .6H.sub.2 O.

REFERENCES:
patent: 3778368 (1973-12-01), Nakamura et al.
patent: 4849517 (1989-07-01), Weber et al.
patent: 5006654 (1991-04-01), Ludwig et al.

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