Spectrophotometric determination of the stability of tin(II) chloride complexes in aqueous solution up to 300°C

Müller, Barbara; Seward, Terry M.

doi:10.1016/s0016-7037(01)00690-1

Cited by 58 publications

(23 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cumulative formation constants (␤) for the tin chlorides have been reported [22]. From the reported ␤ values, mole fractions of Sn species were estimated as functions of [HCl] (Fig.…”

Section: Resultsmentioning

confidence: 99%

Mass-independent isotopic fractionation of tin in chemical exchange reaction using a crown ether

Moynier¹,

Fujii²,

Télouk³

2009

Analytica Chimica Acta

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Mass-independent isotopic fractionation of tin in chemical exchange reaction using a crown ether

Moynier¹,

Fujii²,

Télouk³

2009

Analytica Chimica Acta

View full text Add to dashboard Cite

“…Calamita Formation could have been much greater than that envisaged based on these experiments. It must also be noted that other metals besides Fe can be effectively transported as chloride complexes in hot, reducing, relatively acidic and saline solutions [59,60]. For instance, this process could explain the enrichment in Sn and W commonly observed in hematite-rich ores from eastern Elba [61].…”

Section: Implications Of Tourmalinisation For the Metallogeny Of Eastmentioning

confidence: 99%

Experimental Investigation of Biotite-Rich Schist Reacting with B-Bearing Fluids at Upper Crustal Conditions and Correlated Tourmaline Formation

et al. 2017

View full text Add to dashboard Cite

Fluid-rock interaction experiments between a biotite-rich schist (from Mt. Calamita Formation, Elba Island, Italy) and B-bearing aqueous fluids were carried out at 500-600 • C and 100-130 MPa. The experiments have been carried out in order to reproduce the reaction, which would have produced tourmalinisation of the biotite schist, supposedly by circulation of magmatic fluids issued from leucogranitic dykes. The reacting fluids were either NaCl-free or NaCl-bearing (20 wt %) aqueous solutions, with variable concentration of H 3 BO 3 (0.01-3.2 M). The experimental results show that tourmaline (belonging to the alkali group) crystallise under high-temperature and upper crustal conditions (500-600 • C, 100-130 MPa) when H 3 BO 3 concentration in the system is greater than 1.6 M. The composition of tourmaline is either dravitic (Mg-rich) or schorlitic (Fe-rich), depending if an NaCl-bearing or NaCl-free aqueous solution is used. In the first case, a significant amount of Fe released from biotite dissolution remains in the Cl-rich solution resulting from the experiment. By contrast, when pure water is used, Na/K exchange in feldspars makes Na available for tourmaline crystallisation. The high concentration of Fe in the residual fluid has an important metallogenic implication because it indicates that the interaction between the saline B-rich fluid of magmatic derivation and biotite-rich schists, besides producing tourmalinisation, is capable of mobilising significant amounts of Fe. This process could have produced, in part or totally, the Fe deposits located close to the quartz-tourmaline veins and metasomatic bodies of the Mt. Calamita Formation. Moreover, the super-hot reservoir that likely occurs in the deepest part of the Larderello-Travale geothermal field would also be the site of an extensive reaction between the B-rich fluid and biotite-bearing rocks producing tourmaline. Thus, tourmaline occurrence can be a useful guide during deep drilling toward a super-hot reservoir.

show abstract

“…3. The concentrations of the Sn(IV) species generated can be indicated by the corresponding changes in the light absorption spectra, using phenylfluorone indicator [10]. The net absorption value is calculated by subtracting that of the HCl -phenylfluorone solution.…”

Section: Introductionmentioning

confidence: 99%

Electrorefining in Aqueous Chloride Media for Recovering Tin From Waste Materials

Kékesi¹

2013

Acta Metall Slovaca

View full text Add to dashboard Cite

Recycling of the impure tin generated by the hot dip tinning and wave soldering technologies widely applied in modern electronic industry can be carried in a flexible and economical way even at relatively low production rates by electrorefining. In order to avoid the economical disadvantages of the alkali stannate or the sulphuric acid -cresylic phenylic sulphonic acid baths, the hydrochloric acid tin chloride electrolyte solutions can be applied. The major difficulties of solution stability, cathode corrosion and rough electro-crystallization can be overcome by optimizing the solution composition and the current parameters. Strong chlorocomplex formation in the hydrochloric acid solution enhance stability of the Sn(II) species and the consequent natural inhibition promotes a cathodic deposition of acceptable quality. The virtual current efficiency and the morphology of electro-crystallization were improved by applying periodically reversed (PCR) current. Although cathode corrosion could be depressed to a negligible level, dendritic crystal growth remains to be dominant, therefore special cell arrangement and cathode handling should be applied. The cathode deposit is easily removed and melted, allowing to obtain a recycled tin of high purity.

show abstract

Spectrophotometric determination of the stability of tin(II) chloride complexes in aqueous solution up to 300°C

Cited by 58 publications

References 70 publications

Mass-independent isotopic fractionation of tin in chemical exchange reaction using a crown ether

Mass-independent isotopic fractionation of tin in chemical exchange reaction using a crown ether

Experimental Investigation of Biotite-Rich Schist Reacting with B-Bearing Fluids at Upper Crustal Conditions and Correlated Tourmaline Formation

Electrorefining in Aqueous Chloride Media for Recovering Tin From Waste Materials

Contact Info

Product

Resources

About