Dynamic Viscosities of Some Sodium Sulfonamides in Water and Normal Saline Solution at Several Temperatures.
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| Title: | Dynamic Viscosities of Some Sodium Sulfonamides in Water and Normal Saline Solution at Several Temperatures. |
|---|---|
| Authors: | Rodríguez, Gerson A.1 (AUTHOR), Martínez, Fleming1 (AUTHOR) fmartinezr@unal.edu.co, Vargas, Edgar F.2 (AUTHOR) |
| Source: | International Journal of Thermophysics. Jun2026, Vol. 47 Issue 6, p1-34. 34p. |
| Subjects: | Dynamic viscosity, Sulfonamides, Aqueous solutions, Molecular interactions, Ionic solutions, Temperature effect, Saline solutions |
| Abstract: | Dynamic viscosities of aqueous dissolutions of sodium sulfadiazine (NaSD), sodium sulfamerazine (NaSMR), and sodium sulfamethazine (NaSMT) were determined as a function of drug concentration and temperature in water and normal saline solution (NaCl 0.9 % w/w). Results obtained allowed to determine the relative viscosities and the Falkenhagen (A coefficient) and Jones–Dole (B coefficient) coefficients for the three sodium sulfonamides in both solvent systems at the different temperatures. The viscous flow activation parameters, Δ ‡ μ 2 o , Δ ‡ H 2 o , and Δ ‡ S 2 o were determined in water and normal saline solution, and the transfer B coefficients were calculated for the three sodium sulfonamides as a function of temperature. Obtained results show that the viscosity of the three sodium sulfonamides in both solvent systems increases with drug concentration and with the molar mass of the solute (owing the presence of additional –CH3 groups in the structure), which suggests strong solute–solvent interactions and also indicates that the solutes studied behave as formers of the structure of the solvent. Likewise, viscosity decreases with an increase in temperature indicating an increase in intermolecular distances as a consequence of thermal movement. The viscosity A and B coefficients indicate that the solute–solute interactions in solution are weak owing the low value of A, whereas the positive value for the B coefficient indicates strong ionic solvation (strong solute–solvent interactions) and also suggests that sodium sulfonamides in solution act as solvent structure formers due to hydrophobic hydration and steric hindrance owing the presence of rings in the molecules studied. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 194722185 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Dynamic Viscosities of Some Sodium Sulfonamides in Water and Normal Saline Solution at Several Temperatures. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rodríguez%2C+Gerson+A%2E%22">Rodríguez, Gerson A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martínez%2C+Fleming%22">Martínez, Fleming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fmartinezr@unal.edu.co</i><br /><searchLink fieldCode="AR" term="%22Vargas%2C+Edgar+F%2E%22">Vargas, Edgar F.</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Thermophysics%22">International Journal of Thermophysics</searchLink>. Jun2026, Vol. 47 Issue 6, p1-34. 34p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Dynamic+viscosity%22">Dynamic viscosity</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfonamides%22">Sulfonamides</searchLink><br /><searchLink fieldCode="DE" term="%22Aqueous+solutions%22">Aqueous solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+interactions%22">Molecular interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+solutions%22">Ionic solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Saline+solutions%22">Saline solutions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Dynamic viscosities of aqueous dissolutions of sodium sulfadiazine (NaSD), sodium sulfamerazine (NaSMR), and sodium sulfamethazine (NaSMT) were determined as a function of drug concentration and temperature in water and normal saline solution (NaCl 0.9 % w/w). Results obtained allowed to determine the relative viscosities and the Falkenhagen (A coefficient) and Jones–Dole (B coefficient) coefficients for the three sodium sulfonamides in both solvent systems at the different temperatures. The viscous flow activation parameters, Δ ‡ μ 2 o , Δ ‡ H 2 o , and Δ ‡ S 2 o were determined in water and normal saline solution, and the transfer B coefficients were calculated for the three sodium sulfonamides as a function of temperature. Obtained results show that the viscosity of the three sodium sulfonamides in both solvent systems increases with drug concentration and with the molar mass of the solute (owing the presence of additional –CH3 groups in the structure), which suggests strong solute–solvent interactions and also indicates that the solutes studied behave as formers of the structure of the solvent. Likewise, viscosity decreases with an increase in temperature indicating an increase in intermolecular distances as a consequence of thermal movement. The viscosity A and B coefficients indicate that the solute–solute interactions in solution are weak owing the low value of A, whereas the positive value for the B coefficient indicates strong ionic solvation (strong solute–solvent interactions) and also suggests that sodium sulfonamides in solution act as solvent structure formers due to hydrophobic hydration and steric hindrance owing the presence of rings in the molecules studied. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10765-026-03769-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 34 StartPage: 1 Subjects: – SubjectFull: Dynamic viscosity Type: general – SubjectFull: Sulfonamides Type: general – SubjectFull: Aqueous solutions Type: general – SubjectFull: Molecular interactions Type: general – SubjectFull: Ionic solutions Type: general – SubjectFull: Temperature effect Type: general – SubjectFull: Saline solutions Type: general Titles: – TitleFull: Dynamic Viscosities of Some Sodium Sulfonamides in Water and Normal Saline Solution at Several Temperatures. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rodríguez, Gerson A. – PersonEntity: Name: NameFull: Martínez, Fleming – PersonEntity: Name: NameFull: Vargas, Edgar F. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 0195928X Numbering: – Type: volume Value: 47 – Type: issue Value: 6 Titles: – TitleFull: International Journal of Thermophysics Type: main |
| ResultId | 1 |
