FIELD: chemistry.
SUBSTANCE: essence of method is that hydrogen-sulphide saturated aqueous solution of formaldehyde (37-%) reacts with solution of 1,4-diaminobutane in butanol (in 1:5 ratio), heated to 0-80°С and stirred, for 3 hours.
EFFECT: resulting substances are used as selective sorbents and extractants for precious metals; specific reagents for suppression of bacterial activity in various media.
3 cl, 2 tbl
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