锆—铝鞣液的组份研究——Ⅰ.组份的电荷及分子大小分布

Study on the Components of Zr-Al Tanning Solutions

本文用离子交换色谱法及凝胶过滤色谱法研究七种锆—铝鞣液的组份,它们的电荷和分子大小分布,实验表明锆—铝鞣液至少含有电荷从一,0到8^+九种以上不同电荷的组份及6-8个不同分子大小的组份。大部份锆离了带一,0电荷,一部份为6^+电荷,其它组份中的锆离子量很少。大部份锆离子的尺寸比铝离子的小,这与制革界人士通常的想法完全不同。

ThE IEC and GFC mcthods havc been uscd to study the components of sculn Zr-Al tanning solutions. It is found that the tanning solutions can be separated into more than NiNe fractious with the charge from, 0 to 8^+ and 6-8 fractions differcut in moleculars sige. The dominant fractions of Aluminumlious are those with the chasge of 3^+ and 5^+, as to zirconium, are those with the charge 0,-,and 6^+. The moleculan sige of aluminum compounds presented in the tanning solutions are much largen than that of zinconium.