Fierz-David, H. E. (Hans Eduard), 1882-1953 · New York, D. Van Nostrand · leaf 200
SULPHUR MELTS 153 /)-toluidine, then thiotoluidine, dehydrothiotoluidine, and bis- dehydrothiotoluidine. The following formulge indicate the con- stitution of the above substances : … p - Toluidine. Thio ■ p - Toluidine. Dehydro thio-p- Toluidine. I. IL S/ ^S' *' Bis "-dehydrothio-p-Toluidine, or PrimuUne base. III. 214 Gms. (2 mols.) of /)-toluidine are heated with 140 gms. 214 gms._ powdered sulphur [not flowers of sulphur) and 2 gms. dehydrated j '^^^^'^f^S^' sodium…
Dyes and dyeing
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