Methylene bis (4,1-cyclohexane-diyl-nitrilodimethylene)-tetrakis-phosphonic acid and its 2-methyl derivative, and method for obtaining them

摘要

revealed acid methylenebis (4.1 - cykloheksanodiylnitrilodimetyleno) - tetrakisfosfonowy and his 2 - methyl derivative of formula 1 in which r represents hydrogen atom or methyl group. the subject invention is shown in the examples of.acid methylenebis (4.1 - cykloheksanodiylnitrilodimetyleno) tetrakisfosfonowy and its 2 - methyl derivative, are intended for use in a specific place in which kompleksonu00f3w, chelating, namely group aminometylofosfonowe are sheltered large hydrofobowymi czaszami as gr up cykloheksylowych joined the bridge methylene.