Platinum Metals Rev 1982 26 (2) 58 Tin-Palladium Catalysts for Electroless Plating The original two-step catalyst process used the combination of a soak in a hydrochloric acid-stannous chloride solution followed by a soak in a palladium chloride-hydrochloric acid solution The stannous chloride served to wet the surface with a uniform The increase in oxygen to hydrogen ratio through the electrolysis is essentially a concentration effect If you consider the electrode potentials: O 2 /OH-E θ = +0 40 V and for Cl 2 /Cl-E θ = +1 36 V then logically the hydroxide ion OH-is more easily oxidised than the chloride Cl-ion So initially the concentration-kinetic factor wins out the much higher concentration of chloride ions

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Jul 24 2019Metal uptake from solution was monitored using a tin chloride assay as described in Deplanche et al (2010) Once nanoparticle synthesis had reached completion the "as made" E coli-NP preparation was centrifuged (13 720 g 15 min) washed three times and re-suspended in ultrapure water

solution using the procedure given in Section 7 0 5 7 Sodium chloride solution standard (0 025N) Dissolve 1 4613 g + 0 0002 g of sodium chloride (dried at 600EC for 1 hr) in chloride-free water in a 1 liter Class A volumetric flask and dilute to the mark with reagent water 5 8 Sodium hydroxide solution (0 25N) Dissolve approximately 10 g of

Synthesis Platinum nanoparticles are typically synthesized either by the reduction of platinum ion precursors in solution with a stabilizing or capping agent to form colloidal nanoparticles or by the impregnation and reduction of platinum ion precursors in a micro-porous support such as alumina Some common examples of platinum precursors include potassium hexachloroplatinate (K 2 PtCl 6

The continued use of adding calcium chloride as a control measure helps to keep soil compositions healthier for crop production Application of Calcium Chloride To increase yields from 14 to 15 percent add one-half to one pound of calcium chloride to one pound of

Answer: When an aqueous solution of sodium chloride is electrolysed using platinum electrodes the ion discharged at the electrodes are Solution : As the reduction potential of hydrogen is lower than that of sodium it will be discharged at the cathode and chloride will be discharged at the anode

Tin

Platinum Metals Rev 1982 26 (2) 58 Tin-Palladium Catalysts for Electroless Plating The original two-step catalyst process used the combination of a soak in a hydrochloric acid-stannous chloride solution followed by a soak in a palladium chloride-hydrochloric acid solution The stannous chloride served to wet the surface with a uniform

A leaching process was established based on the ability of platinum-group metals to form stable chloro-complexes in acidic chloride solutions Industrial catalyst losses were examined for the recovery of platinum palladium and rhodium by leaching with a mixture of sulfuric acid and sodium chloride to avoid using aqua regia or autoclave conditions Extraction of platinum and rhodium in 60%

This study explored the possibility of platinum adsorption from dilute platinum chloride solutions using biosorbents (activated pistachio nut shell and rice husk) Platinum uptake (%) of ≥ 95% was easily attainable using excessive amounts of activated pistachio nut shell ( ≥ 40 mg) and rice husk ( ≥ 40 mg) at 100 rpm with 60 minutes of

A leaching process was established based on the ability of platinum-group metals to form stable chloro-complexes in acidic chloride solutions Industrial catalyst losses were examined for the recovery of platinum palladium and rhodium by leaching with a mixture of sulfuric acid and sodium chloride to avoid using aqua regia or autoclave conditions Extraction of platinum and rhodium in 60%

The study also focused on the achievable desorption from the loaded resins using different eluent systems The leach solution was chlorine-saturated and contained 2 35 mol/L hydrochloric acid platinum and palladium in concentrations of 0 13 mmol/L and rhodium 0 03 mmol/L

Jul 24 2012Platinum-based drugs are activated by the leaving of labile chloride ligands and aquation The activated cationic platinum-aqua complexes bind readily to DNA and other nucleophiles (1 ⇓ –3) The aquation rates of pyriplatin and phenanthriplatin in D 2 O at 37 C were investigated by 1 H NMR spectroscopy (SI Appendix Fig S4)

Jul 24 2012Monofunctional platinum(II) complexes of general formula cis -[Pt(NH3)2( N -heterocycle)Cl]Cl bind DNA at a single site inducing little distortion in the double helix Despite this behavior these compounds display significant antitumor properties with a different spectrum of activity than that of classic bifunctional cross-linking agents like cisplatin

Platinum and ruthenium can be simultaneously extracted from hydrochloric acid solution by high molecular weight amines (trioctylamine (TOA) or diantipyrylmethane (DAM) in 1 2-dichloroethane) after preliminary conversion into the complexes with SnCl 3-ligands The determination of both metals in the presence of each other in organic solutions of

Contributions of rat Ctr1 to the uptake and toxicity of

The uptake of copper by both cultured rat DRG neurons and HEK/rCtr1 cells was saturable and inhibited by cold temperature silver and zinc consistent with it being mediated by rCtr1 Cultured rat DRG neurons accumulated platinum during their exposure to oxaliplatin and were sensitive to oxaliplatin cytotoxicity

phase showed that the metal can be removed in over 50% for the three extractant using sodium hydroxide The recovery of silver from the chloride leaching solutions were above 85% for bis(2-ethylhexyl)amine above 58% for N N-dimethylethanolamine and above 70% for trioctylamine 1 Introduction Use Sulphurous copper ores have polymetallic character

Pistachio nut shells and Rice husk a biomass residue were investigated as adsorbents for the platinum uptake from synthetically prepared dilute chloroplatinic acid solutions The effects of the different uptake parameters on platinum uptake (%) were studied in detail on a batch sorption Before the pistachio nut shell material was activated platinum uptake (%) was poor compared with rice husk

Nov 23 2011The present work investigates gold uptake using a commercial resin Lewatit TP 214 and rice husk agricultural waste from synthetically prepared dilute gold chloride solutions with 100 ppm gold (Au 3+) and provides a comparison between these two sorbents The effects of the different uptake parameters on gold uptake (%) were studied in detail

Pistachio nut shells and Rice husk a biomass residue were investigated as adsorbents for the platinum uptake from synthetically prepared dilute chloroplatinic acid solutions The effects of the different uptake parameters on platinum uptake (%) were studied in detail on a batch sorption

Apr 07 2008Pt melts at about 3000 f I use Propane and oxygen which only gets to 3500f so I am not able to melt the Pt to a point where it will flow but I can melt it enough to get very soft and bind together One can wash the red mud with water which will result in the Platinum Chloride turning to Platinum oxide and will go from red to black

solution using the procedure given in Section 7 0 5 7 Sodium chloride solution standard (0 025N) Dissolve 1 4613 g + 0 0002 g of sodium chloride (dried at 600EC for 1 hr) in chloride-free water in a 1 liter Class A volumetric flask and dilute to the mark with reagent water 5 8 Sodium hydroxide solution (0 25N) Dissolve approximately 10 g of

The interaction of aqueous solutions bearing platinum-group elements (PGEs) with sulfides is important for understanding the formation and weathering of PGE ore deposits mineral processing and synthesis of nanomaterials Here the surface species formed upon the contact of the main sulfide minerals (pyrite pyrrhotite galena chalcopyrite and valleriite) with the solutions of H2PtCl6 (pH 1