Contents.

I.Introduction.[Page 1]
II.Preparation of the Acid Potassium Salt
of Paranitroorthosulphobenzoic Acid.[ 6]
III.Preparation of the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[12]
IV.Properties of the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[19]
V.The Action of Benzene and Aluminium
Chloride on the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[22]
The Barium Salts of
Paranitroorthobenzoybbenzenesulphonic Acid.[24]
VI.The Action of Alcohols on the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[30]
1. Methyl Alcohol.[31]
2. Ethyl Alcohol.[32]
Action of Ethyl Alcohol on the Unsymmetrical
 Chloride.[36]
VII.The Action of Phenols on the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[38]
1. Phenol.[40]
2. Orthocresol.[48]
3. Paracresol.[51]
4. Hydroquinone.[53]
5. Resorcin.[56]
6. Pyrogallol.[59]
7. β-naphthol.[61]
VIII.The Action of Aniline on the Symmetrical Chloride
of Paranitroorthosulphobenzoic Acid.[62]
IX.The Action of Phosphorus Oxychloride on the Fusible
Anilid of Paranitroorthosulphobenzoic Acid.[71]
X.The Action of Reagents on the Dianil of
Paranitroorthosulphobenzoic Acid.[77]
1. Of Hydrochloric Acid.[77]
2. Of Alcoholic Potash.[78]
3. Of Glacial Acetic Acid.[79]
XI.Conclusions.[82]
Biographical.[85]