Gado, Mohamed A. published the artcileThorium ions adsorption from aqueous solution by amino naphthol sulphonate coupled chitosan, Quality Control of 116-63-2, the publication is International Journal of Environmental Analytical Chemistry (2021), 101(10), 1419-1436, database is CAplus.
A designed new adsorbent by coupling chitosan and 1-Amino-2-naphthol-4-sulfonic acid to get an excellent synergistic effect of 1-Amino-2-naphthol-4-sulfonic coupled chitosan (ANSC) which used for the removal of tetravalent thorium ions. The modified chitosan adsorbent was identified by BET isotherm studies, elemental anal., SEM, EDX and FT-IR, techniques. The FT-IR confirmed the structure of the modified chitosan. Langmuir isotherm model described the adsorption results with the 252.57 mg/g maximum adsorption capacity. It should be perceived that the thorium ions adsorption matched more careful with the kinetics pseudo-second-order. It was found that the adsorption of Th(IV) is strongly dependent on pH and time.
International Journal of Environmental Analytical Chemistry published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Quality Control of 116-63-2.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem