Abstract Cystallization of calcium oxalate monohydrate was investigated in the presence of various organic molecules in combination with zinc ions. This work looked at the impacts at physiological pHs (6–8) and temperature (37 °C). It was found that the number of carboxylate and hydroxyl groups was critical in determining the degree of inhibition. This inhibition was found to be mainly due to the ability of the organics to chelate with calcium ions when zinc ions are not present. Zinc ions were found to chelate with oxalate ions leading to lower nucleation rates, but this is not strictly inhibition but a lowering of the supersaturation due to lowering of the activity of the oxalate. Organics have variable impact depending on whether the zinc ions or calcium ions preferentially chelate with the organic.

中文翻译：

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锌离子在一水草酸钙结晶中的作用

摘要 研究了在各种有机分子与锌离子结合的情况下草酸钙一水合物的结晶。这项工作着眼于生理 pH 值 (6-8) 和温度 (37 °C) 的影响。发现羧酸根和羟基的数目在确定抑制程度方面是关键的。发现这种抑制主要是由于有机物在锌离子不存在时与钙离子螯合的能力。发现锌离子与草酸盐离子螯合导致成核速率降低，但这不是严格的抑制，而是由于草酸盐活性降低而降低过饱和度。有机物具有不同的影响，这取决于锌离子还是钙离子优先与有机物螯合。