Alkol-Su Karışımlarının Dielektrik Sabitlerinin Mikrodalga (MD) Spektroskopi Tekniği ile İncelenmesi

Yıl 2024, Cilt: 24 Sayı: 2, 255 - 259, 29.04.2024

Cengiz Okay

https://doi.org/10.35414/akufemubid.1363525

Öz

Son birkaç on yılda, endüstride mikrodalga (MW) spektroskopi uygulamalarının kullanımı önemli ölçüde artmıştır. Bu teknik, dielektrik parametrelerin (Ɛ’ ve Ɛ”) ölçümü yoluyla alkol-su karışımları hakkında çok önemli ayrıntılar vermesi nedeniyle oldukça kullanışlıdır. Bu çalışmada, saf sudan saf alkole doğru konsantrasyon değişimleri için etanol-su ve metanol-su karışımlarının dielektrik parametreleri (Ɛ’ ve Ɛ”) belirlendi. Etanol-su ve metanol-su karışımlarının dielektrik parametrelerinin (Ɛ’ ve Ɛ”) kırılma noktalarının %43 ve %44 hacim fraksiyonlarında, xet≈ 0.20M ve xmet ≈ 0.26M molar fraksiyonlarında olduğu tespit edildi.

Anahtar Kelimeler

Mikrodalga Tekniği;, Dielektrik parametre;, Alkol-su karışımları, permittivity

Etik Beyan

Etik Beyana gerek yoktur

Investigation of Dielectric Constants of Alcohol-Water Mixtures by Microwave (MW) Spectroscopy Technique

Öz

Over the last few decades, the utilization of microwave (MW) spectroscopy applications in industry has grown dramatically. This technique is very useful as it gives very important details about alcohol-water mixtures through the measurement of dielectric parameters (Ɛ’ and Ɛ”). This research determined the dielectric parameters (Ɛ’ and Ɛ”) of ethanol-water and methanol-water mixtures for concentration changes from pure water to pure alcohol. The ethanol-water and methanol-water mixture volume fractions of 43% and 44%, respectively, as well as the molar fractions xet≈ 0.20M and xmet ≈ 0.26M, obtained the breaking points of the dielectric parameters (Ɛ’ and Ɛ”).

Anahtar Kelimeler

Microwave Technique, Dielectric parameter, Alcohol-water mixtures, permittivity

Kaynakça

• Benmore, C. J., & Loh, Y. L. (2000). The structure of liquid ethanol: A neutron diffraction and molecular dynamics study. Journal of Chemical Physics, 112(13), 5877–5883. https://doi.org/10.1063/1.481160
• Burikov, S., Dolenko, T., Patsaeva, S., Starokurov, Y., & Yuzhakov, V. (2010). Raman and IR spectroscopy research on hydrogen bonding in water-ethanol systems. Molecular Physics, 108(18), 2427–2436. https://doi.org/10.1080/00268976.2010.516277
• Hayashi, H., Nishikawa, K., & Iijima, T. (1990). Small-angle X-ray scattering study of fluctuations in 1-propanol-water and 2-propanol-water systems. Journal of Physical Chemistry, 94(21), 8334–8338. https://doi.org/10.1021/j100384a062
• Jora, M. Z., Cardoso, M. V. C., & Sabadini, E. (2017). Correlation between viscosity, diffusion coefficient and spin-spin relaxation rate in 1H NMR of water-alcohols solutions. Journal of Molecular Liquids, 238, 341–346. https://doi.org/10.1016/j.molliq.2017.05.006
• Kanse, K. S., Chavan, S. D., Mali, C. S., Kumbharkhane, A. C., & Mehrotra, S. C. (2006). Structural study of methanol-water mixture from dielectric parameters. Indian Journal of Physics, 80(3), 265–269.
• Lone, B. G., Undre, P. B., Patil, S. S., Khirade, P. W., & Mehrotra, S. C. (2008). Dielectric study of methanol-ethanol mixtures using TDR method. Journal of Molecular Liquids, 141(1–2), 47–53. https://doi.org/10.1016/j.molliq.2008.03.001
• Matsugami, M., Yamamoto, R., Kumai, T., Tanaka, M., Umecky, T., & Takamuku, T. (2016). Hydrogen bonding in ethanol-water and trifluoroethanol-water mixtures studied by NMR and molecular dynamics simulation. Journal of Molecular Liquids, 217(D), 3–11. https://doi.org/10.1016/j.molliq.2015.06.050
• McSweeney, F. B. . and B. P. L. H. (1995). Advanced Dairy Chemistry (P. L. H. M. and P. F.Fox (ed.); 3rd ed., Vol. 2. Ireland, Springer, 768-770.
• Mohsen-Nia, M., Amiri, H., & Jazi, B. (2010). Dielectric constants of water, methanol, ethanol, butanol and acetone: Measurement and computational study. Journal of Solution Chemistry, 39(5), 701–708. https://doi.org/10.1007/s10953-010-9538-5
• Morlyoshl, T., Ishii, T., Tamal, Y., & Tado, M. (1990). Static Dielectric Constants of Water + Ethanol and Water +. J.Chem. Eng. Data, 35, 17–20.
• Nishikawa, K., & Iijima, T. (1993). Small-angle X-ray scattering study of fluctuations in ethanol and water mixtures. Journal of Physical Chemistry, 97(41), 10824–10828. https://doi.org/10.1021/j100143a049
• Noskov, S. Y., Lamoureux, G., & Roux, B. (2005). Molecular dynamics study of hydration in ethanol-water mixtures using a polarizable force field. Journal of Physical Chemistry B, 109(14), 6705–6713. https://doi.org/10.1021/jp045438q
• Oğuzhan Akgöl. (2020). Metamalzeme Tabanlı Sensör İle Sahte Rakıdaki Metanol Tespiti. TUBİTAK 1002 Proje No: 119E034, İskenderun Teknik Üniversitesi, Hatay.
• Okay, C. (2023). Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi Investigation of Relaxation Times of Alcohol-Water Mixtures by Time Domain NMR Technique Alkol- Su Karışımlarının Durulma Sürelerinin Zaman Boyutlu NMR Tekniği ile İncelenmesi. 23, 300–305. https://doi.org/10.35414/akufemubid.1152842
• Takamuku, T., Maruyama, H., Watanabe, K., & Yamaguchi, T. (2004). Structure of 1-propanol-water mixtures investigated by large-angle X-ray scattering technique. Journal of Solution Chemistry, 33(6–7), 641–660. https://doi.org/10.1023/B:JOSL.0000043631.21673.8b
• Takamuku, T., Yamaguchi, A., Matsuo, D., Tabata, M., Kumamoto, M., Nishimoto, J., Yoshida, K., Yamaguchi, T., Nagao, M., Otomo, T., & Adachi, T. (2001). Large-angle X-ray scattering and small-angle neutron scattering study on phase separation of acetonitrile-water mixtures by addition of NaCl. Journal of Physical Chemistry B, 105(26), 6236–6245. https://doi.org/10.1021/jp003011n
• Takamuku, T., Yamaguchi, T., Asato, M., Matsumoto, M., & Nishi, N. (2000). Structure of clusters in methanol-water binary solutions studied by mass spectrometry and X-ray diffraction. Zeitschrift Fur Naturforschung - Section A Journal of Physical Sciences, 55(5), 513–525. https://doi.org/10.1515/zna-2000-0507
• Tanaka, H., Nakanishi, K., & Touhara, H. (1985). Computer experiments on aqueous solutions. VII. Potential energy function for urea dimer and molecular dynamics calculation of 8 mol % aqueous solution of urea. The Journal of Chemical Physics, 82(11), 5184–5191. https://doi.org/10.1063/1.448643
• Tataroǧlu, A. (2013). Dielectric permittivity, AC conductivity and electric modulus properties of metal/ferroelectric/semiconductor (MFS) structures. Gazi University Journal of Science, 26(3), 501–508.
• Yoshida, K., Kitajo, A., & Yamaguchi, T. (2006). 17O NMR relaxation study of dynamics of water molecules in aqueous mixtures of methanol, ethanol, and 1-propanol over a temperature range of 283-403 K. Journal of Molecular Liquids, 125(2–3), 158–163. https://doi.org/10.1016/j.molliq.2005.11.009