The Volatile Chemist
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Thiosulfate Complex
Simple question, does thiosulfate complex, and if so, how easily does it happen?
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thesmug
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I believe it does. If it does, it is probably fairly easy but I'll have to check in detail in a little while.
Good eyes
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DraconicAcid
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I know it forms a complex with silver, but I don't know about other ions off the top of my head.
Actually, Lang's Handbook gives formation constants for complexes of thiosulphate with cadmium, copper(I), iron(III), lead, mercury(II) and silver.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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sasan
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Go to this address http://woelen.homescience.net/science/chem/exps/exppatt.cgi?...) search for sodium thiosulfate there is 14 experiments for this compound
like cyanide ion thiosulfate make a strong complex with gold1+ ions,there is a complex with silver too,silver oxide and halides dissolve in
thoisulfate
Fe3+ make a purplish complex with it but readily reduced to Fe2+.
Cu2+ also make complexes with thiosulfate that it is complicated because it is highly depends on the condition of the
reaction(temprature,concentration,pH,the starting faze:I mean combination of the Cu2+ and thiosulfate solution or pouring water into the mixture of
sodium thiosulfate and copper salt)
thiosulfate and cyanide ion make complexes with most of transition metal ions
sorry for bad language
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The Volatile Chemist
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Quote: Originally posted by sasan  |
Go to this addresshttp://woelen.homescience.net/science/chem/exps/exppatt.cgi?...) search for sodium thiosulfate there is 14 experiments for this compound
like cyanide ion thiosulfate make a strong complex with gold1+ ions,there is a complex with silver too,silver oxide and halides dissolve in
thoisulfate
Fe3+ make a purplish complex with it but readily reduced to Fe2+.
Cu2+ also make complexes with thiosulfate that it is complicated because it is highly depends on the condition of the
reaction(temprature,concentration,pH,the starting faze:I mean combination of the Cu2+ and thiosulfate solution or pouring water into the mixture of
sodium thiosulfate and copper salt)
thiosulfate and cyanide ion make complexes with most of transition metal ions
sorry for bad language |
Thanks, I apologise for not looking it up. I made the Ferric (II) or (III) complex, it's very pretty. If anyone wants to see the video, I can upload
it to youtube. I really liked the reaction. Give me a chance to look it up in my notes, and I'll post it here.
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CHRIS25
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In case you are interested? just in case....you can get some great colour on copper via silver and thiosulphate, it plates it silver (not with the
same quality as electro-chemically since I have done both), but with shades of dull yellow to a silvery yellow to silver lustre that can then be
rubbed to achieve nice decorative stuff. A nice patination.
‘Calcination… is such a Separation of Bodies by Fire, as makes ‘em easily reducible into Powder; and for that reason ‘tis call’d by some
Chymical Pulverization.’ (John Friend, Chymical Lectures London, 1712)
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. (William Penn 1644-1718)
The very nature of Random, Chance development precludes the existence of Order - strange that our organic and inorganic world is so well defined by
precision and law. (me)
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The Volatile Chemist
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| Quote: Originally posted by CHRIS25 | | In case you are interested? just in case....you can get some great colour on copper via silver and thiosulphate, it plates it silver (not with the
same quality as electro-chemically since I have done both), but with shades of dull yellow to a silvery yellow to silver lustre that can then be
rubbed to achieve nice decorative stuff. A nice patination. |
Interesting! I ran out of Sodium Thiosulfate making a video of an Iron Thiosulfate Complex. I assume there are no easy ways to make it...?
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sasan
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Beside these,there is a thiosulfate complex with lead,at first combine the solutions of lead nitrate or acetate and sodium thiosulfate in
stochiometric amounts to obtain lead thiosulfate precipitate.collect the precipitate,wash it few times to,then pour it to another beaker,add water add
sodium thiosulfate in small portions till all of lead thoisulfate dissolves.there is near colorless solution of sodium thiosulfato plumbate.let it to
dry to obtain your new compound(it is just a procedure I have read it somewhere but I'm sure it must be work),be advised that both of lead thiosulfate
and thiosulfatoplumbate are unstable and decompose in high temperatures even at bp of water 100,so do not boil down the solution
watch here for more information about copper and sodium thiosulfate comlexes:http://www.crscientific.com/article-redox3.html
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The Volatile Chemist
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| Quote: Originally posted by sasan |
Beside these,there is a thiosulfate complex with lead,at first combine the solutions of lead nitrate or acetate and sodium thiosulfate in
stochiometric amounts to obtain lead thiosulfate precipitate.collect the precipitate,wash it few times to,then pour it to another beaker,add water add
sodium thiosulfate in small portions till all of lead thoisulfate dissolves.there is near colorless solution of sodium thiosulfato plumbate.let it to
dry to obtain your new compound(it is just a procedure I have read it somewhere but I'm sure it must be work),be advised that both of lead thiosulfate
and thiosulfatoplumbate are unstable and decompose in high temperatures even at bp of water 100,so do not boil down the solution
watch here for more information about copper and sodium thiosulfate comlexes:http://www.crscientific.com/article-redox3.html
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Thanks! I'll try it once I get some thiosulfate!
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sasan
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And the easiest method for making yellowish cuprous oxide using sodium thiosulfate::
2CuO + Na2S2O4 + 2NaOH = Cu2O + 2Na2SO3 + H2O
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