is that could be palladium powder ?
- Thread starter bastinado
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You need your metal in solution to test with stanus.
From my experience, this looks like (NH3)2Cl2PdCl2, diamminedichloropalladium(ii) chloride. The appearance is described as: "(Color) Faint Yellow to Yellow and Yellow-Green"
It is sparingly soluble and precipitated with the addition of HCl to your previous solution of Pd(NH3)4Cl2, tetraamminepalladium(ii) chloride.
Depending on the series of reactions some people get a dark brown solution of (NH4)2PdCl4 ammonium tetrachloropalladate(ii), this is characteristc of tetrachloropalladic(ii) acid. Even further oxidation gives hexachloropalladic(iv) acid. With ammonium chloride it precipitates a red (NH4)2PdCl6, diammine hexachloropalladate(iv). I have not been able to get this one... possibly due to adding too much ammonium chloride very early on.
I say, seperate it from the silver chloride, there's bound to be some.. after precipitating, try dissolving in only nitric acid, then add very little hcl or salt to the clear solution. adding too much Cl- will re-disolve some silver as AgCl2- ion
It is sparingly soluble and precipitated with the addition of HCl to your previous solution of Pd(NH3)4Cl2, tetraamminepalladium(ii) chloride.
Depending on the series of reactions some people get a dark brown solution of (NH4)2PdCl4 ammonium tetrachloropalladate(ii), this is characteristc of tetrachloropalladic(ii) acid. Even further oxidation gives hexachloropalladic(iv) acid. With ammonium chloride it precipitates a red (NH4)2PdCl6, diammine hexachloropalladate(iv). I have not been able to get this one... possibly due to adding too much ammonium chloride very early on.
I say, seperate it from the silver chloride, there's bound to be some.. after precipitating, try dissolving in only nitric acid, then add very little hcl or salt to the clear solution. adding too much Cl- will re-disolve some silver as AgCl2- ion
I didnot add Nh4CL to my solution to have this compound
90 % probability that my powder is pure palladium with no palladium oxide
when there is mixture of pure palladium and palladium oxide the powder is gray , and if the powder is 100 % palladium oxide it become totally black
this is my deduction
if i found place to melt my powder and have as alloy i ll check by xray and no exactly what is and i intend to inform you
90 % probability that my powder is pure palladium with no palladium oxide
when there is mixture of pure palladium and palladium oxide the powder is gray , and if the powder is 100 % palladium oxide it become totally black
this is my deduction
if i found place to melt my powder and have as alloy i ll check by xray and no exactly what is and i intend to inform you
Are you sure this is not silver chloride somehow? You said there was some black pd that cemented to the copper, and then later this powder appeared. Have you tried to dissolve a small sample of the powder with ammonia?
So, what did stannous testing give?
It still doesn't look like palladium to me, more like a slag. For example tin oxides could be created when working with MLCC:s and tin(IV) oxide melts at slightly higher temperature than palladium. Silver chloride is also a possibility.
When you melt a metal in a melting dish it has a very different appearance compared to slags. It should have been obvious if you had a metal or other metal salts creating slag.
Testing is always more reliable than deduction.
Göran
It still doesn't look like palladium to me, more like a slag. For example tin oxides could be created when working with MLCC:s and tin(IV) oxide melts at slightly higher temperature than palladium. Silver chloride is also a possibility.
When you melt a metal in a melting dish it has a very different appearance compared to slags. It should have been obvious if you had a metal or other metal salts creating slag.
Testing is always more reliable than deduction.
Göran
there was no reaction with ammonium chloride
my solution was filtered so it is free of any insoluble silver chloride
i assume the black is metal because i know palladium well be mixed with carbon which is main component of acetylene and also it well be oxidized so it may looks black
the was no borax during melting trial
i failed to make stannous i started weeks ago ad i still see my tin wire in the solution
my solution was filtered so it is free of any insoluble silver chloride
i assume the black is metal because i know palladium well be mixed with carbon which is main component of acetylene and also it well be oxidized so it may looks black
the was no borax during melting trial
i failed to make stannous i started weeks ago ad i still see my tin wire in the solution
Topher_osAUrus
Well-known member
...maybe it's just me
But, if I couldn't even make stannous chloride, I sure wouldn't be trying to melt some unknown powder I "think" is palladium.
But, if I couldn't even make stannous chloride, I sure wouldn't be trying to melt some unknown powder I "think" is palladium.
Melting is not at my house
i went to jewelery workshop for melting ( they only work in silver and gold ) they don't have induction furences melt over than 1200 c , they don't have even oxy hydrogen because acetylene is enough
for me melting palladium is problem rather than selling ,
my Hcl is less than 30 % concentration
i know how to make stannous the problem is in the low concentration and the rusted or un pure tin , and even if i use stannous it well confirm there is palladium , and am sure there is palladium and some thing impossible to dissolve high grade MLCC and there is no palladium in
what i want to know is this palladium by meaning th most of powder is palladium or it might be palladium with other metals ?
i do all chemical tests which confirm this powder have no tin , no copper , no copper mono-chloride
and it is impossible to have silver chloride because i already remover it during filtration of my red solution as powder
so what would be remain is one of the precocious metals which are used in MLCC it is not nickel and not copper and not tin and not silver , so it is either Palladium or platinum or ruthenium
i went to jewelery workshop for melting ( they only work in silver and gold ) they don't have induction furences melt over than 1200 c , they don't have even oxy hydrogen because acetylene is enough
for me melting palladium is problem rather than selling ,
my Hcl is less than 30 % concentration
i know how to make stannous the problem is in the low concentration and the rusted or un pure tin , and even if i use stannous it well confirm there is palladium , and am sure there is palladium and some thing impossible to dissolve high grade MLCC and there is no palladium in
what i want to know is this palladium by meaning th most of powder is palladium or it might be palladium with other metals ?
i do all chemical tests which confirm this powder have no tin , no copper , no copper mono-chloride
and it is impossible to have silver chloride because i already remover it during filtration of my red solution as powder
so what would be remain is one of the precocious metals which are used in MLCC it is not nickel and not copper and not tin and not silver , so it is either Palladium or platinum or ruthenium
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- Jan 11, 2012
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To be blunt... Stop guessing at what you have! Either do the tests that the members here have suggested, or take it and have someone professionally analyze it....you are going to get the cold shoulder if you continue to ignore the advice that has been given to you.
ok
thanks for all members who have give an advice
i see no one have expertise such as this powder looking or this black color after acetylene melting but many thanks
i have not ignore any advice , DMG is not available for me , Stannous Chloride result is negative or i failed to prepare it ( may be the low HCL concentration or the bad oxidized tin )
i cant imagine Hi grade MLCC from servers and telecom boards and photo copiers have no palladium
physically and chemically the powder is not salt or tin or tin oxide
chemically it is impossible to be silver or silver chloride
chemically it is impossible to be zirconium or zirconium oxide
what am sure 100 % this powder is Either precious metal but not silver or acid resistible oxide for metal i don't know but it have been used to make ceramic material in the MLCC
thanks for all members who have give an advice
i see no one have expertise such as this powder looking or this black color after acetylene melting but many thanks
i have not ignore any advice , DMG is not available for me , Stannous Chloride result is negative or i failed to prepare it ( may be the low HCL concentration or the bad oxidized tin )
i cant imagine Hi grade MLCC from servers and telecom boards and photo copiers have no palladium
physically and chemically the powder is not salt or tin or tin oxide
chemically it is impossible to be silver or silver chloride
chemically it is impossible to be zirconium or zirconium oxide
what am sure 100 % this powder is Either precious metal but not silver or acid resistible oxide for metal i don't know but it have been used to make ceramic material in the MLCC
patnor1011
Well-known member
Bastinado your HCl is as strong as it gets. HCl does not come stronger than what you have. I do not understand how you can fail doing basic easy thing like preparing stannous yet you think you are processing palladium.
For stannous all you need is to heat your HCl and tin will dissolve with ease.
There is plenty of DMG for sale on ebay and if you want to work with palladium you cant cut corners and play guessing game. You either do have palladium there or not. Get yourself some DMG and find out.
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1311.R1.TR1.TRC0.A0.H1.Xdimethylglyoxime.TRS0&_nkw=dimethylglyoxime&_sacat=0
For stannous all you need is to heat your HCl and tin will dissolve with ease.
There is plenty of DMG for sale on ebay and if you want to work with palladium you cant cut corners and play guessing game. You either do have palladium there or not. Get yourself some DMG and find out.
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1311.R1.TR1.TRC0.A0.H1.Xdimethylglyoxime.TRS0&_nkw=dimethylglyoxime&_sacat=0
