最大泡压法测定溶液表面张力实验条件的优化
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董金龙, 刘雪娟, 赵婷婷, 文斌, 韩红斐
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Optimization of Experimental Conditions for Determination of Surface Tension of Solution by the Maximum Bubble Pressure Method
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Jinlong Dong, Xuejuan Liu, Tingting Zhao, Bin Wen, Hongfei Han
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表1 25 ℃时最大泡压法测定乙醇溶液表面张力的数据
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| 序号 | ω/% | c/(mol?L?1) | Δp/kPa | σ/(N?m?1) | dσ/dc | 106 × Γ/(mol?m?2) | 10?5 × c/Γ/(m2?L?1) | | 0 | 0 | 0.00 | 0.597 | 0.0720 | / | / | / | | 1 | 5 | 0.85 | 0.484 | 0.0584 | ?0.0127 | 4.37 | 1.95 | | 2 | 10 | 1.71 | 0.415 | 0.0500 | ?0.00727 | 5.00 | 3.41 | | 3 | 15 | 2.56 | 0.376 | 0.0453 | ?0.00509 | 5.26 | 4.87 | | 4 | 20 | 3.41 | 0.345 | 0.0416 | ?0.00392 | 5.39 | 6.32 | | 5 | 25 | 4.26 | 0.317 | 0.0382 | ?0.00319 | 5.48 | 7.78 | | 6 | 30 | 5.12 | 0.296 | 0.0357 | ?0.00268 | 5.54 | 9.23 | | 7 | 35 | 5.97 | 0.277 | 0.0334 | ?0.00232 | 5.58 | 1.07 | | 8 | 40 | 6.82 | 0.266 | 0.0321 | ?0.00204 | 5.61 | 1.21 |
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