Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Vaid, Zuber More, Utkarsh U. Gardas, Ramesh L. Malek, Naved I. Ijardar, Sushma P. |
| Copyright Year | 2015 |
| Abstract | The experimental data of densities, ρ, speeds of sound, u, and refractive indices, $$ n_{\text{D}} $$ , for pure ionic liquids, 1-butyl-3-methylimidazolium hexafluorophosphate ([C$_{4}$mim][PF$_{6}$]), 1-hexyl-3-methylimidazolium hexafluorophosphate ([C$_{6}$mim][PF$_{6}$]) and 1-octyl-3-methylimidazolium hexafluorophosphate ([C$_{8}$mim][PF$_{6}$]) and their binary mixtures with propylamine were measured by an Anton Paar DSA 5000 densimeter and Abbemat 300 refractometer, respectively. The measurements were performed as a function of concentration and at temperatures between 293.15 and 313.15 K and at 0.1 MPa. From these measured values, the excess molar volumes $$ V_{\text{m}}^{\text{E}} $$ , excess molar isentropic compressibilities $$ K_{S,\text{m}}^{\text{E}} $$ , and refractive index deviations $$ \Delta_{\varphi } n_{\text{D}} $$ were derived and correlated with the Redlich–Kister polynomial equation. The values of $$ V_{\text{m}}^{\text{E}} $$ and $$ K_{S,\text{m}}^{\text{E}} $$ are negative and decrease with increase in temperature whereas the $$ \Delta_{\varphi } n_{\text{D}} $$ are positive and increase with temperature for all studied systems. $$ V_{\text{m}}^{\text{E}} $$ and $$ K_{S,\text{m}}^{\text{E}} $$ decrease with increasing alkyl chain length of ILs. The variations in excess properties are discussed with respect to increases in temperature, addition of –CH$_{2}$ groups in alkyl chain of ILs and the strength of solute-solvent interactions existing in the ILs + amine mixtures. $$ V_{\text{m}}^{\text{E}} $$ was also predicted from the Prigogine–Flory–Patterson theory. |
| Starting Page | 718 |
| Ending Page | 741 |
| Page Count | 24 |
| File Format | |
| ISSN | 00959782 |
| Journal | Journal of Solution Chemistry |
| Volume Number | 44 |
| Issue Number | 3-4 |
| e-ISSN | 15728927 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-04-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ionic liquid Excess molar volume Excess molar isentropic compressibility Refractive index deviation Prigogine–Flory–Patterson theory Physical Chemistry Industrial Chemistry/Chemical Engineering Geochemistry Oceanography Inorganic Chemistry Condensed Matter Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Molecular Biology Biophysics Physical and Theoretical Chemistry |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|