80732-90-7 Bis(ethylenediamine)(mercurictetrathiocyanato)nickel Nickel(2+), bis(1,2-ethanediamine-N,N')-, (T-4)-tetrakis(thiocyanato-S)mercurate(2-) (1:1), homopolymer Nickel, bis(ethylenediamine)(mercurictetrathiocyanato)-