Naphthalene diamine (NdA) is recovered from a 3.0% w aqueous solution by extraction with ethyl ether containing 1.25% water, the remainder being ether. The ether extract is found to contain 15.2% NdA, 3.67% H2O by weight. The final underflow contains 3.25% ether and 96.75% H2O. For the recovery

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