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1-辛基壬胺在硫酸体系中萃取铁的能力随pH增大而增强,表明铁的水解形式有利于萃取。用饱和容量法在不同pH条件下得到的络合物,其组成各不相同;只有在pH2.3时才得到单一络合物,用UV及元素分析证实其组成为(C_(17)H_(35)NH_3)_2SO_4Fe(OH)SO_4。分子量测定表明,1-辛基壬胺硫酸盐及其铁络合物在苯中以分子间缔合状态存在。
The ability of 1-octylnonamide to extract iron in sulfuric acid system increases with increasing pH, indicating that the hydrolyzed form of iron favors extraction. The complexes prepared by the saturated volumetric method at different pHs have different compositions. The single complex was obtained only at pH2.3. Its composition was confirmed by UV and elemental analysis as (C_ (17) H_ ( 35) NH_3) _2SO_4Fe (OH) SO_4. Molecular weight determination showed that 1-octylnonamine sulfate and its iron complexes exist in the intermolecular association state in benzene.