Electrical and dielectric properties of water


  • Francisco Ferreira de Sousa Universidade Federal do Sul e Sudeste do Pará http://orcid.org/0000-0003-3413-5520
  • Lilian Deyse Pinto da Silva Universidade Federal do Pará/Campus de Ananindeua
  • Kellen Heloizy Garcia Freitas Universidade Federal do Pará




Propriedades elétrica e dielétrica, Polarização molar e momento de dipolo, Teoria de Kirkwood


Water is one of the most important substances on planet. It’s constituted by hydrogen and oxygen elements, both of great importance chemistry and fundamental to human life. Although there are many studies about your physical and chemical properties in the scientific literature, much can be studied yet about this substance. In this study we report the electrical and dielectric properties of the water in liquid phase, such as impedance, dielectric permittivity and dipole moment as a function of frequency (1-20 kHz) in the temperature range between 288 and 314 K. The impedance and dielectric permittivity measurements were carried out in experimental apparatus equipped with an impedance analyzer. In addition, a capacitive system of parallel plate was and entire experiment was shielded to minimize electromagnetic interference effects (noise), and connected to the grounding of the laboratory electrical network. The dipole moment values were estimated applying the Kirkwood’s theory based on the definition of Onsager’s local field for polar liquids.

Biografia do Autor

Francisco Ferreira de Sousa, Universidade Federal do Sul e Sudeste do Pará

Faz parte do Instituto de Ciências Exatas da Unifesspa e dos Programas de Pós-Graduação em Física da UFPA e Pós-Graduação em Ciência dos Materiais da UFMA.

Lilian Deyse Pinto da Silva, Universidade Federal do Pará/Campus de Ananindeua

Faz parte do curso de Engenharia de Materiais do Campus de Ananindeua da Universidade Federal do Pará como estudante de graduação.

Kellen Heloizy Garcia Freitas, Universidade Federal do Pará

Faz parte do Faculdade de Química da Universidade Federal do Pará e do Programa de Pós-Graduação em Química.






I Workshop sobre pesquisas na Amazônia e I encontro do MNPEF da Unifesspa