Poddar, S. N.’s team published research in Indian Journal of Chemistry in 3 | CAS: 5941-07-1

Indian Journal of Chemistry published new progress about 5941-07-1. 5941-07-1 belongs to alcohols-buliding-blocks, auxiliary class Salt,Benzene,Naphthalene,Phenol,Inhibitor, name is 8-Hydroxy-1-(salicylideneamino)naphthalene-3,6-disulfonic acid monosodium Salt, and the molecular formula is C17H12NNaO8S2, Name: 8-Hydroxy-1-(salicylideneamino)naphthalene-3,6-disulfonic acid monosodium Salt.

Poddar, S. N. published the artcileSpectrophotometric determination of thorium(IV) with the Schiff base derived from 1-amino-8-naphthol-3,6-disulfonic acid and salicylaldehyde, Name: 8-Hydroxy-1-(salicylideneamino)naphthalene-3,6-disulfonic acid monosodium Salt, the publication is Indian Journal of Chemistry (1965), 3(9), 407-8, database is CAplus.

A spectrophotometric method for the determination of 0.0003913 g. Th/ml. solution is described. Th4+ gives a red color with the Schiff base (I) derived from ο-HOC6H4CHO and 1-amino-8-naphtnol-3,6-disulfonic acid (mono-Na salt) at pH 3.2-5.2. The color (450 mμ; sensitivity 0.032 γ Th/cm.2) of the complex is stable and obeys Beer’s law over 1 to 95 ppm. Th. A mixture of 10 ml. 10% aqueous Th(NO3)4 and 15 ml. 10% I was heated to give a red solution This on treatment with a few drops of aqueous KOH produced a bright red precipitate of the Th-I complex (II), which was filtered, washed with aqueous alc. and dried. II was soluble in H2O, but insoluble in EtOH, Me2CO, CHCl3, and Et2O. On heating with alk. solution, II decomposed to form hydrated ThO2. The composition of II was Th(SB)2, where SBH2 is a mol. of I. Cl–, Br–, I–, NO3–, Na+, K+, alk. earth metals, Cu(II), Co(II), Hg(II), Pd(II), Zn(II), Al(III), Mn(II), Cr(III), and U have no effect on the color system. SO4— tungstate, citrate, PO4—, Ac–, OAc–, and C2O4— do not interfere when present in small quantities but lower the intensity of the color when present in large excess. Fe(III) interferes due to the formation of a violet color but Fe(II) does not. Interference due to Fe(III) can be avoided by reducing it by passing the solution through a Jones reductor and then developing the color with Th. F– bleaches the Th-reagent color quant. VO3–, CrO4—, and Fe(III) form colored products with the reagent and should be removed beforehand.

Indian Journal of Chemistry published new progress about 5941-07-1. 5941-07-1 belongs to alcohols-buliding-blocks, auxiliary class Salt,Benzene,Naphthalene,Phenol,Inhibitor, name is 8-Hydroxy-1-(salicylideneamino)naphthalene-3,6-disulfonic acid monosodium Salt, and the molecular formula is C17H12NNaO8S2, Name: 8-Hydroxy-1-(salicylideneamino)naphthalene-3,6-disulfonic acid monosodium Salt.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts