We are offering mercurous nitrate extra pure hg2(no3)2.2h2o m.w. 561.22 minimum assay 95% melting point 70oc maximum limits of impurities : substances insoluble in nitric acid passes test chloride(cl) 0.03% iron(fe) 0.005% mercury(ii)(as hg) 3% substances not reducible with formic acid (residue on ignition as sulphate) 0.1% cas no: 14836-60-3 un no. 6.11625 tariff : 2834 29 90 r : 262728-33 s : 13-28.1-45 f :