very slightly soluble

appearance: white or almost white crystalline powder, almost no solution in water, soluble in ether, very slightly soluble in ethanol.

性状：白色或类白色结晶性粉末，几乎不溶液水，溶于乙醚，极微溶于乙醇。

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DBM is white or light yellow crystalline powder, soluble in ether, chloroform, xylene, toluene and sodium hydroxide solution, slightly soluble in ethanol, very slightly soluble in water.

本品为白色或浅黄色结晶粉末，易溶于乙醚，氯仿，二甲苯，甲苯及氢氧化钠水溶液，微溶于乙醇，极微溶于水。

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Mn2+ in weak base can creat red chelate which is very slightly soluble. Under gelatin's presence, suspended matter forms diaphaneity, homogeneous and stable, colored sol.

当Mn2+在弱碱性中（pH为9～10）反应生成难溶于水的红色螯合物，悬浮物在明胶存在下形成透明、均匀、稳定的有色溶胶。

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The dependence of the adsorbability of slightly water soluble metal compounds on the pH value of the solution is very similar to that with activated carbon as adsorbent.

难溶金属化合物在树脂上的吸附率与溶液pH值的关系与采用活性碳作吸附剂的情况十分相似。

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