The synthetic dyestuffs : and the intermediate products from which they are derived (1905)
Cain, John Cannell, 1871-1921, Thorpe, Jocelyn Field, 1872-1940 · London : C. Griffen and Co. · leaf 269
.C6H4S03H + 3NaOH -> C^— <^ \NHC,;H4S03Na + 3H20^~^NH.C6H4S03H OH\^ ^NHC6H4S03Na (Soluble blue). 250 SYNTHETIC DYESTUFFS. This blue will also be accompanied by the corresponding homorosanilinederivative CH3 NH.C6H4S03Na < ^>NH. C6H4S03NaOH\/ \NH.C6H4S03Na Fluorescein and Eosine.… … COONa (free acid). (sodium salt). 15 grams phthalic anhydride.22 „ resorcinol.7 zinc chloride. The materials are ground together in a mortar and heated in an oil-bath to180°. For this purpose a nickel crucible may be used.1 As soon as the tem-perature has reached 180°, 7 grams of powdered fused…
Dyes and dyeing
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