title: Determination of purity of o-sulphobenzoic anhydride.
abstract: A comparison is made of four methods for the determination of the anhydride and free acid content of impure o-sulphobenzoic anhydride.
authors.affiliation: Department of Chemistry University of Jodhpur Jodhpur, India.
authors.forename: V
authors.initials: V
authors.lastname: Iyer
authors.forename: N K
authors.initials: NK
authors.lastname: Mathur