Domenico De Marco, Athos Bellomo, Alessandro De Robertis
{"title":"Formation and thermodynamic properties of mixed complexes of Cd(II) with SCN2H4 and C−, Br−, I− as ligands","authors":"Domenico De Marco, Athos Bellomo, Alessandro De Robertis","doi":"10.1016/0022-1902(81)80450-2","DOIUrl":"10.1016/0022-1902(81)80450-2","url":null,"abstract":"<div><p>Thermodynamic parameters for in-water-formation of mononuclear complexes of cadmium-halide-thiourea systems, calculated by means of potentiometric measurements at different temperatures and at μ = 1 for KNO<sub>3</sub>, are reported.</p></div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 1","pages":"Pages 137-141"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80450-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87584656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hydrothermal stability of β-Cs2U2O7 and SrZrO3 in fluids","authors":"Sridhar Komarneni","doi":"10.1016/0022-1902(81)80626-4","DOIUrl":"10.1016/0022-1902(81)80626-4","url":null,"abstract":"<div><p>The stability of β-Cs<sub>2</sub>U<sub>2</sub>O<sub>7</sub> and SrZrO<sub>3</sub>, two possible phases of spent fuel elements, in hydrothermal fluids was investigated. β-Cs<sub>2</sub>U<sub>2</sub>O<sub>7</sub> was unstable under hydrothermal conditions of 100, 200 and 300°C/300 bars releasing substantial amounts of its Cs in deionized water and all of its Cs in a bittern (high-Mg and-Ca) brine. SrZrO<sub>3</sub> was found to be quite stable in deionized water but not in a bittern brine. For example, Sr released into solution decreased from 3.9 to 2.8% with an increase in temperature from 100 to 300°C probably because of better crystallization of SrZrO<sub>3</sub> at higher temperatures. In bittern brine, 23.3, 94.9 and 100% of Sr was released into solution at 100, 200 and 300°C respectively as a result of acidic conditions generated by the hydrolysis of MgCl<sub>2</sub> and formation of brucite. These results suggest that bittern brine which may be encountered in a salt repository is highly corrosive and may release all the Cs and Sr into solution under hydrothermal conditions if the containment were breached. The use of tailor-made overpacks or backfill barriers of highly stable and sorptive materials is essential especially in a salt repository in order to minimize the threat of highly hazardous Cs and Sr radionuclides finding their way into ground waters.</p></div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 11","pages":"Pages 2833-2837"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80626-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87961947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ron Trujillo, Albert Baca, Carolyn Castillo, William F. Coleman
{"title":"On the nature of the products of the reaction between Cr(III) and alanine","authors":"Ron Trujillo, Albert Baca, Carolyn Castillo, William F. Coleman","doi":"10.1016/0022-1902(81)80527-1","DOIUrl":"10.1016/0022-1902(81)80527-1","url":null,"abstract":"","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 3","pages":"Pages 631-633"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80527-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88103178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Schiff base complexes of organotin(iv): Synthesis, IR and Mössbauer spectral studies of addition complexes of diorganotin dichlorides with N-(hydroxyalkyl) salicylideneimines","authors":"B.S. Saraswat , G. Srivastava, R.C. Mehrotra","doi":"10.1016/0022-1902(81)80664-1","DOIUrl":"10.1016/0022-1902(81)80664-1","url":null,"abstract":"","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 11","pages":"Pages 3003-3007"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80664-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88202751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chloro complexes of cobalt(II) in acetone","authors":"Kiyoshi Sawada, Tsukio Onoda, Toshio Suzuki","doi":"10.1016/0022-1902(81)80099-1","DOIUrl":"10.1016/0022-1902(81)80099-1","url":null,"abstract":"<div><p>Equilibria of cobalt(II) perchlorate with lithium chloride in 0.1 M LiClO<sub>4</sub> acetone solution have been investigated by means of potentiometry and spectrophotometry at 25.0°C. By the addition of a large excess of medium salt (LiClO<sub>4</sub>), the ionic dissociation of electrolytes are surpressed and the ion-pairs predominate in this medium. It was confirmed that AgAgCl electrode gives rise to the Nernstian response in this medium. The potentiometry reveals the formation of following chloro complexes of cobalt (II): <span><span><span><math><mtext>Co(ClO</mtext><msub><mi></mi><mn>4</mn></msub><mtext>)</mtext><msub><mi></mi><mn>2</mn></msub><mtext>+LiCl</mtext><mtext>⇌</mtext><mtext>K</mtext><msub><mi></mi><mn>1</mn></msub><mtext>CoCl(ClO</mtext><msub><mi></mi><mn>4</mn></msub><mtext>)+LiClO</mtext><msub><mi></mi><mn>4</mn></msub></math></span></span></span><span><span><span><math><mtext>Co(ClO</mtext><msub><mi></mi><mn>4</mn></msub><mtext>)+LiCl</mtext><mtext>⇌</mtext><mtext>K</mtext><msub><mi></mi><mn>2</mn></msub><mtext>CoCl</mtext><msub><mi></mi><mn>2</mn></msub><mtext>+LiClO</mtext><msub><mi></mi><mn>4</mn></msub></math></span></span></span><span><span><span><math><mtext>CoCl</mtext><msub><mi></mi><mn>2</mn></msub><mtext>+LiCl</mtext><mtext>⇌</mtext><mtext>K</mtext><msub><mi></mi><mn>3</mn></msub><mtext>LiCoCl</mtext><msub><mi></mi><mn>3</mn></msub></math></span></span></span></p><p>Successive formation constants were determined as log K<sub>1</sub> = 5.0 ± 0.3, log K<sub>2</sub> = 6.2 ± 0.3 (log <em>β</em><sub>2</sub> = log K<sub>1</sub>K<sub>2</sub> = 11.15 ± 0.03) and log K<sub>3</sub> = 5.97 ± 0.03. By the spectrophotometric titration at higher concentration of lithium chloride, we have the following equilibrium: <span><span><span><math><mtext>LiCoCl</mtext><msub><mi></mi><mn>3</mn></msub><mtext>+LiCl</mtext><mtext>⇌</mtext><mtext>K</mtext><msub><mi></mi><mn>4</mn></msub><mtext>LiCoCl</mtext><msub><mi></mi><mn>3</mn></msub></math></span></span></span> with formation constant of log K<sub>4</sub> = 2.64 ± 0.05. Absorption spectra of these complexes are presented.</p></div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 12","pages":"Pages 3263-3268"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80099-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88204953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stability and C.D. spectra of Co2+ and Cu2+ complexes with epimeric threonines and isoleucines","authors":"N. Ivičić, Vl. Simeon","doi":"10.1016/0022-1902(81)80311-9","DOIUrl":"10.1016/0022-1902(81)80311-9","url":null,"abstract":"<div><p>Acid dissociation constants of epimeric threonines (Thr, <em>allo</em>-Thr) and isoleucines (Ile, <em>allo</em>-Ile) and the stability constants of their complexes with Co<sup>2+</sup> and Cu<sup>2+</sup> were determined by potentiometry. The natural epimers form more stable complexes than the <em>allo</em> forms. C.d. spectra of the complexes investigated were recorded, resolved into component bands and assigned.</p></div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 10","pages":"Pages 2581-2584"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80311-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86199134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differential scanning calorimetric and Raman spectroscopic study of polymorphism in Na2SO4","authors":"C.A. Cody, L. Dicarlo, R.K. Darlington","doi":"10.1016/0022-1902(81)90031-2","DOIUrl":"10.1016/0022-1902(81)90031-2","url":null,"abstract":"","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 2","pages":"Pages 398-400"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)90031-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83659847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electronic absorption spectra of Fe(III) in some phosphate glasses","authors":"Anwar A. Kinawi","doi":"10.1016/0022-1902(81)80535-0","DOIUrl":"10.1016/0022-1902(81)80535-0","url":null,"abstract":"<div><p>Electronic absorption spectra of Fe(III) in some phosphate glasses have been measured at room and near liquid-nitrogen temperatures, in the energy range 11,500–30,000 cm<sup>−1</sup>. Assuming cubic-field microsymmetry, and taking no account of spin-orbit coupling, it was found that the energies of the five observed bands are accounted for satisfactorily in terms of single values of B, C and Δ using the free-atom representation of the crystal-field theory, provided that a Trees' correction is included. It was found that the simple strong-field representation gives less satisfactory results. The Racah parameters, B and C, were evaluated for Fe(III) in two different phosphate media without a pre-assigned value of the fraction C/B and an empirical value of C/B = 3.60 was determined and applied to other data in the literature.</p></div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 9","pages":"Pages 1989-1995"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80535-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86737144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}