AC magnetic susceptibility at medium frequencies suggests a paramagnetic behavior of pure water

Gutiérrez-Mejía, Fabiola A.; Ruiz‐Suárez, J. C.

doi:10.1016/j.jmmm.2011.10.035

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…The Ho(III) molar susceptibility χ Ho has been evaluated through the equation, neglecting the contribution of chlorine ions to the solution susceptibility: χ H o = χ s o l − χ H 2 O C H o A dimensionless magnetic susceptibility of χ H 2 O = −9·10 –6 has been taken for water . The Ho(III) molar susceptibility values resulting from the solution susceptibility values obtained for the three cases shown in Figure are reported in Table .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Approach for Quantifying Magnetic Susceptibility of Aqueous and Organic Solutions

Wojtaszek,

Cristofolini,

Popoli

et al. 2024

J. Phys. Chem. A

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A new method for measuring the magnetic properties of aqueous and organic solutions is presented. This approach is based on quantifying the force resulting from the sample's interaction with a magnetic field. The experimental setup utilizes neodymium magnets attached to a stepper motor to adjust the distance between the magnets and the test sample, while an analytical balance serves as a strain gauge. Magnetic susceptibility measurements were performed on selected inorganic and organic solutions. A series of finite element simulations allowed us to convert experimental results to physical quantities describing magnetic susceptibilities of substances. The limit of detection (LoD) and limit of quantification (LoQ) values for the developed method of determining magnetic susceptibility were equal to 6.67• 10 −3 M and 2.02•10 −2 M, respectively.

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Section: Resultsmentioning

confidence: 99%

“…A dimensionless magnetic susceptibility of χ Hd 2 O = −9•10 −6 has been taken for water. 81 The Ho(III) molar susceptibility values resulting from the solution susceptibility values obtained for the three cases shown in Figure 8 are reported in Table 3.…”

Section: Experimental Magnetic Susceptibility Determinationmentioning

confidence: 99%

A Novel Approach for Quantifying Magnetic Susceptibility of Aqueous and Organic Solutions

Wojtaszek,

Cristofolini,

Popoli

et al. 2024

J. Phys. Chem. A

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“…e) susceptibility of water at −1, +25 and +37 °C, showing a transition of the polar solvent between paramagnetism to diamagnetism across 25 °C. Reproduced with permission . Copyright 2012, Elsevier.…”

Section: Methodsmentioning

confidence: 99%

“…They are characterized by not perfectly understood effects induced by high electric/magnetic fields, such as the reduction of the strength of hydrogen bonds, which is likely to occur in a FF . Regarding water, the most relevant effect we may point out is the change of magnetic susceptibility from negative (diamagnetism) to positive (paramagnetism), depending on temperature and frequency (Figure e) . This effect could be exploited to induce attracting/repelling behavior, changes in volume and shape, in temperature‐controlled, water‐based SFS.…”

Section: Methodsmentioning

confidence: 99%

Smart Fluid Systems: The Advent of Autonomous Liquid Robotics

Chiolerio

Quadrelli

2017

Advanced Science

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Organic, inorganic or hybrid devices in the liquid state, kept in a fixed volume by surface tension or by a confining membrane that protects them from a harsh environment, could be used as biologically inspired autonomous robotic systems with unique capabilities. They could change shape according to a specific exogenous command or by means of a fully integrated adaptive system, and provide an innovative solution for many future applications, such as space exploration in extreme or otherwise challenging environments, post‐disaster search and rescue in ground applications, compliant wearable devices, and even in the medical field for in vivo applications. This perspective provides an initial assessment of existing capabilities that could be leveraged to pursue the topic of “Smart Fluid Systems” or “Liquid Engineered Systems”.

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“…Among these properties, which is the one we are interesting in this work, is the magnetic susceptibility, or alternatively the magnetic permeability. In a study done by Gutierrez-Mejia and Ruiz-Suarez [11], the susceptibility of pure water was measured in a frequency range of 0.5-1 MHz, and it was found that, water change its magnetic property from diamagnetic to paramagnetic at a frequency of about 0.5 MHz. Moreover, the susceptibility continually increased with frequency up to 1 MHz, which is the upper limit of frequency covered by the study.…”

Section: Principle Of Operationmentioning

confidence: 99%

Magnetic Coupling of Two Coils Due to Flow of Pure Water Inside Them – Double Coil Volumetric Flow Sensor

Jarrah¹,

Aljabarin²

2022

Adv. Sci. Technol. Res. J.

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In this work a simple new type of flow sensors was developed, the double coil flow sensor. In this sensor two coils are magnetically coupled due to the flow of pure water inside them. The first coil, the primary coil, was supplied by AC voltage in the frequency range 0.5-1 MHz which is the coupling range of frequency for water. The voltage in the second coil, was found to be directly proportional with the volumetric flow rate of the water flowing inside the coils. The two coils can only be coupled in the laminar flow region. In the turbulent region, due to the turbulent chaos and fluctuation the two coils cannot be effectively coupled, and therefore the sensor cannot be used. The temperature of the water was found to have a negligible effect on the coupling, which add a good advantage to the simplicity of the double coil sensor. The working fluid used in this work was pure water. Other fluids are believed to be working as well, most probably at different frequency range, and this will be the subject of future work.

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AC magnetic susceptibility at medium frequencies suggests a paramagnetic behavior of pure water

Cited by 7 publications

References 26 publications

A Novel Approach for Quantifying Magnetic Susceptibility of Aqueous and Organic Solutions

A Novel Approach for Quantifying Magnetic Susceptibility of Aqueous and Organic Solutions

Smart Fluid Systems: The Advent of Autonomous Liquid Robotics

Magnetic Coupling of Two Coils Due to Flow of Pure Water Inside Them – Double Coil Volumetric Flow Sensor

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