TY  - JOUR
SP  - 1
IS  - 2021
PB  - IOP Publishing
AV  - public
Y1  - 2023///
VL  - 1876
ID  - repounp38547
KW  - Association structure
KW  -  solubility
KW  -  methyl red
KW  -  methylene blue
KW  -  microemulsion
KW  -  lamellar liquid crystal
KW  -  SDBS
KW  -  pentanol
TI  - Association Structure and Solubility Dynamic of Methyl Red and Methylene Blue in the System of Water, Sodium Dodecyl Benzene Sulfonate and Pentanol
N2  - The purpose of this study was to determine the association structure, solubility, and homogeneity of methyl red and methylene blue in the system of water, sodium dodecylbenzene sulfonate (SDBS), and pentanol system, and to analyze the morphology of the association structure before and after dissolved in methyl red and methylene blue. The mass ratio composition of water/SDBS/pentanol system at pH 4.5, 7, and 9.5 selected from created Temer phase diagram to obtain the association structures. From the obtained association structures, the solubility of methyl rod at pH 4.5 and methylene blue at pH 7 and 9.5 was analyzed. The homogeneity of methyl red and methylene blue was determined by the refractive index. The results showed that two association structures namely microemulsion (water in oil (wo) and oil in water (w)) and lamellar liquid crystal phase was obtained. The maximum solubility of methyl red was found in wo microemulsion. Meanwhile, the maximum solubility of methylene blue was found in o/w microemulsion. Refractive index results showed that mostly methyl rod and methylene blue dissolved in the sample homogeneously. The structure of the liquid crystal microemulsion changed after the addition of methyl red and methylene blue observed by the Optical Polarizing Microscope.
EP  - 8
UR  - https://iopscience.iop.org/article/10.1088/1742-6596/1876/1/012030
JF  - Journal of Physics: Conference Series
A1  - Putra, Ananda
A1  - Mahda, Atia
A1  - Nizar, Umar Kalmar
A1  - Deskiberi, Deskiberi
A1  - Amran, Ali
SN  - Print: 1742-6588 dan Online: 1742-6596
ER  -