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2 30 ℃时最大泡压法测定乙醇溶液表面张力数据
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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 | 0.582 | 0.0712 | / | / | / | | 1 | 5 | 0.853 | 0.477 | 0.0583 | ?0.0139 | 4.72 | 1.81 | | 2 | 10 | 1.71 | 0.409 | 0.0500 | ?0.00742 | 5.04 | 3.40 | | 3 | 15 | 2.55 | 0.364 | 0.0445 | ?0.00509 | 5.15 | 4.95 | | 4 | 20 | 3.41 | 0.337 | 0.0412 | ?0.00385 | 5.21 | 6.54 | | 5 | 25 | 4.26 | 0.307 | 0.0375 | ?0.00310 | 5.25 | 8.12 | | 6 | 30 | 5.12 | 0.288 | 0.0352 | ?0.00259 | 5.27 | 9.71 | | 7 | 35 | 5.97 | 0.272 | 0.0332 | ?0.00223 | 5.29 | 1.13 | | 8 | 40 | 6.82 | 0.262 | 0.0321 | ?0.00196 | 5.30 | 1.29 |
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