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5.5. According to the measurement of the surface tensio
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Uploaded: 22.02.2021
Content: 5.5.rar 70,7 kB
Product description
5.5. According to the measurement of the surface tension of aqueous solutions of sodium dodecyl sulfate at various temperatures, determine the CMC, the effect on the CMC of a temperature increase:
lgC -2.4 -2.18 -2.08 -2.03 -2.01 -1.99 -1.95 -1.90 -1.88 -1.82
20 ° C 58 50 - 44 44 44 41 44 - 44
60 ° C 54 47 43 42 41 41 41 41 41 41
90 ° C 49 40 38 - - 35 29 29 29 29
Surface tension b in Nm / m. Surfactant concentration is expressed in mol / L.