Monograph number: 07246
Title: p-Phenolsulfonic Acid
CAS Registry Number: 98-67-9
CAS Name: 4-Hydroxybenzenesulfonic acid
Additional Names: sulfocarbolic acid
Molecular Formula: C6H6O4S
Molecular Weight: 174.17
Percent Composition: C 41.38%, H 3.47%, O 36.74%, S 18.41%
Literature References: Commercially available as a 65% soln. Prepn by hydrolysis of p-chloro- or p-bromobenzenesulfonic acid: Zollinger, Roehling, US
1321271 (1920); by sulfonation of phenol: Davidson, Byrne, GB 820659 (1959 to Hardman & Holden). Prepn of ammonium salt: Oxley et al., J. Chem.
Soc. 1948, 303.
Properties: Deliquescent needles. Miscible with water, alcohol. |