METHOD OF INHIBITING CORROSION OF METLAS DURING PICKLING AND SOLUTION FOR SAME

摘要

1377576 Isoperthiocyanic acid and its derivatives UKRAINSKY NAUCHNO-ISSLEDOVATELSKY UGLEKHIMICHESKY INSTITUT 13 May 1972 22583/72 Heading C2C [Also in Division C7] Alpha-hydroxy substituted derivatives of isoperthiocyanic acid of formula where R = -CH 2 OH, -C 2 H 4 OH, -C 3 H 6 OH or -C 6 H 4 CH 2 OH are prepared by condensing isoperthiocyanic acid with aliphatio or aromatic aldehydes; the isoperthiocyanic acid is prepared thus 2NH 4 CNS + H 2 SO 4 -# 2HCNS + (NH 4 ) 2 SO 4 3HCNS-# HCN +H 2 C 2 N 2 S 3 (isoperthiocyanic acid).