On Sulphonfluoresceïn and Some of Its Derivatives

"On Sulphonfluoresceïn and Some of Its Derivatives" by C. W. Hayes is a late 19th-century science book, detailing a deep look into sulphonfluoresceïn and its related chemical compounds. It shows how sulphonfluoresceïn is made and what happens when its parts are changed. The book talks about the experiments used to make ortho-sulphonbenzoic acid and then sulphonfluoresceïn by mixing it with resorcin, describing the different ways the chemicals were made and how things like oxidation changed what they did. It then covers stuff like what the crystals look like, how well it dissolves, and how it looks under light, noting its faint green glow. Readers will see how the author altered and reacted the chemical and what the result was in terms of its makeup, how easy it is to dissolve, and how acidic it is.