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<strong>Effect of sample age of fluorocarbons on MC800 asphaltene on dynamic nuclear polarization parameters</strong>

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Authentication Code dc
 
Title Statement <strong>Effect of sample age of fluorocarbons on MC800 asphaltene on dynamic nuclear polarization parameters</strong>
 
Added Entry - Uncontrolled Name ovalioglu, huseyin
 
Uncontrolled Index Term Asphaltene; Dynamic nuclear polarization; Fluorobenzene; Overhauser effect
 
Summary, etc. <p><span>Nuclear Magnetic Resonance and Overhauser effect type dynamic nuclear polarization (DNP) experiments were performed to study suspensions of asphaltene in the fluorocarbons at a low magnetic field of 1.53 mT at room temperature. Asphaltene was extracted from MC800 liquid asphalt, which was Heavy Iran origin. Each sample of the solvent medium was produced at three different concentrations of asphaltene. These samples were kept for a period of seven years until DNP parameters were discovered through new DNP tests. The influence of sample age on parameters of DNP was studied and then the findings were analyzed. It was found that the  nuclear-electron coupling parameter was smaller. In low magnetic fields the nuclear-electron coupling parameter. varies from +0.5 (pure dipolar) to -1.0 (pure scalar), and new  obtained values are between these limits. New  values in our study are positive and this shows that the dipolar part of intermolecular spin-spin interactions is dominant.</span></p>
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2022-07-12 11:59:22
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJCT/article/view/59598
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 29, ##issue.no## 2 (2022): Indian Journal of Chemical Technology
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCT/article/download/59598/465595389