CMC of SDS only

Effect of Salt Additives on SDS Conductivity & CMC

Initial Solvent Vol in Beaker (mL): SDS Stock Concentration (mM):

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Added Vol (mL)0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11

Conductivity (uS/cm)129.4, 183.1, 224, 268, 310, 353, 395, 436, 473, 508, 548, 587, 627, 661, 695, 725, 752, 779, 802, 823, 846, 868, 886

Pre-Micellar End

Post-Micellar Start

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Added Vol (mL)0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11

Conductivity (uS/cm)187.3, 215.4, 241.3, 272.7, 300.2, 327.6, 350.9, 379.9, 410.8, 437.2, 464.5, 490.1, 519.2, 546.3, 572.2, 592.8, 612.4, 630.6, 649.4, 666.3, 691, 708.7, 727.6

Pre-Micellar End

Post-Micellar Start

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Added Vol (mL)0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11

Conductivity (uS/cm)277.8, 298.4, 321.8, 342.6, 362.1, 382.8, 399.7, 420.9, 442.8, 463.2, 481.8, 502, 521.6, 541.9, 561, 580, 592, 605, 616.6, 627.9, 640, 653, 666

Pre-Micellar End

Post-Micellar Start

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Added Vol (mL)0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12

Conductivity (uS/cm)298.4, 337.5, 375.6, 409.6, 446, 482.3, 516.7, 551.4, 587, 622, 653.9, 687.4, 719.8, 744.4, 769.4, 794, 817, 841.4, 863.6, 887, 913, 936.4, 961, 983.5, 1002.4

Pre-Micellar End

Post-Micellar Start

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Added Vol (mL)0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11

Conductivity (uS/cm)331.2, 376.6, 414.6, 455, 488.2, 520, 564, 598, 624, 662, 699.7, 727, 754.7, 783.1, 809, 826, 853.4, 879.8, 905, 931, 956.4, 982, 1003

Pre-Micellar End

Post-Micellar Start

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