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The temperatures of phase transitions were determined in ternary mixtures with a constant mass content of (2), respectively, 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 70.0 mass % and also in ternary mixtures with constant mass relationship of (1) and (3) as 45.0:55.0, 57.5:42.5, and 70.0:30.0, respectively. L1 nitromethane-rich phase; L2 propanetriol-rich phase; L3 acid-rich phase. The phase which is being dissolved is indicated in the table. Method/Apparatus/Procedure: The synthetic method (Alekseev1) was used. Mixtures of (1), (2) and (3) of total mass 10g were heated with vigorous stirring to a temperature higher than the homogenization temperature, then slowly cooled until turbidity appeared. Heating and cooling cycles were repeated twice. Temperature values obtained for appearing and disappearing turbidity were averaged. |
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xiaoqihu
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yunfeng1985(金币+2): 2010-03-22 18:27
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相变温度通过3组质量恒定的混合物来测定。分别为 2.5, 5.0, 7.5, 10.0, 20.0, 40.0, 70.0的质量百分比 和 3组份质量恒定的混合物（1）：（3）分别为 45.0:55.0, 57.5:42.5, and 70.0:30.0 各相按照下表的方式溶解 L1：硝基甲烷相 L2：丙三醇相 L3：酸相 方法，仪器，过程 采用 (Alekseev1)合成方法。混合物（1），（2）和（3）总共10g加热，快速搅拌直到高于均化温度。然后缓慢冷却直到出现浑浊。加热和冷却循环重复两次，最终的温度数值为出现浑浊的平均温度和浑浊消失平均温度 没看到你的混合物（1） [ Last edited by xiaoqihu on 2010-3-8 at 21:38 ] |
2楼2010-03-08 21:35:44