Fierz-David, H. E. (Hans Eduard), 1882-1953 · New York, D. Van Nostrand · leaf 131
INTERMEDIATE PRODUCTS 94 … (a) Dinitrostilbene-Disulphonic Acid. 00 Gms. /)-nitrotoluene are sulphonated exactly as described for loo gms. p- Nitrotoluene. nitrobenzene, and the product separated as the sodium salt. The 280-320 gms. press-cakes are dissolved in 500 c.cs. of water at 60° with the aid of 25 % Oleum. soda,…
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