Nomenclature
CAS number: 516-18-7
2-Hydroxy-1-naphthalenesulfonic acid calcium salt (2:1); calcium 2-hydroxy-1-naphthalenesulfonate; calcium β-naphthol-α-monosulfonate; calcium 2-naphthol-1-sulfonate; 2-naphthol-1-sulfonic acid calcium salt; Abrastol; Calcinaphthol.
C
20H
14CaO
8S
2; mol wt 486.53.
C 49.37%, H 2.90%, Ca 8.24%, O 26.31%, S 13.18%.
Description and references
Prepn: Hagers Handb.
Pharm. Praxis Band 2, 204 (Berlin, 1930).
Derivative
Trihydrate.
Properties
Reddish-white, odorless powder. Dec at about
50°. One gram dissolves in 1.5 ml water, 3 ml alc.Use
Has been used instead of gypsum to plaster wines.