Contribution to the Physical Chemistry of Hevea Latex. I. Metal Cations in Latex
Contribution to the Physical Chemistry of Hevea Latex. I. Metal Cations in Latex
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对橡胶树乳胶物理化学的贡献。
DOI：
10.5254/1.3543359
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发表时间：
1952
影响因子：
1.5
通讯作者：
R. Belmas
中科院分区：
文献类型：
--
作者：
R. Belmas
摘要 我们对橡胶树乳胶的认识仍然不完整，一些问题，例如对其天然无机成分的研究，还没有得到解决。在分析乳胶中的灰分以及溶液中的金属对乳胶胶体稳定性的影响方面已经做了一些有价值的工作，但是关于这些金属在天然乳液中的物理化学状态以及它们在浆液和橡胶颗粒之间的分配的事实很少。本文中描述的研究致力于在可溶形式时能够影响胶乳胶体行为的金属成分。这些包括钾、钠、钙和镁，在某些情况下还包括铁。本工作没有研究铜和锰，因为它们已成为众多研究的对象，并且这些金属在橡胶氧化中发挥强大的促产氧剂的作用。
Abstract Our knowledge of Hevea latex is still incomplete, and some problems, such, for example, as a study of its natural inorganic ingredients, have not been attacked. Some work of value has been done on the analysis of the ash from latex and on the influence of metals in solution on the colloidal stability of latex, but few facts are available concerning the physico-chemical state of these metals in the natural emulsion and their partition between the serum and rubber particles. The investigation which is described in the present paper is devoted to metal components which are capable of influencing, when in soluble form, the colloidal behavior of latex. These include potassium sodium, calcium, and magnesium and, under some conditions, iron. Copper and manganese were not studied in this work for they have been the object of numerous investigations, and these metals play in effect the part of powerful prooxygenic agents in the oxidation of rubber.