some photos of Au powder/process

[shyknee]

plastic pail would of been a cheap alternative to that expensive beaker

 

[glondor]

That IS quite the beaker. Is there any worry of wall failure? Please put that in a bucket! Fantastic photos. Do show the results.

 

[Sucho]

it is a serious pyrex beaker and its weight is cca 1 kilo. with processors and fluid it weights cca 12 kilos.
i have no worries of wall failure, because this beaker is brand new with no scratches and i use a large, 20 liter lab grade water bath with thermostat and stirrer to heat it.
if you use a classic heater with beaker of this shape, sooner or later you will hear well known sound of breaking glass and all of your gold will be lost.
for heating on classic heater i use beakers up to 1 liter.for larger beakers, you have to use a kind of bath to avoid breaking.

i know that plastic bucket is a cheap alternative. i like lab glass because of better reaction control and clearer work.

everything is dissolved and filtered now.
fluid composition- 2,5 liters DI water,3 liters of HCL(2,5 liters at beginning), 400-500 mL of HNO3 in additions during dissolving.
i will drop it tomorrow. i will post a result.

i will post a result of a batch of similiar shape in near future.

 

[goldenchild]

Thats a helluva beaker you have there. It looks like a tall form. What is the bottom diameter? I've been thinking about getting a 5000ml.

 

[Sucho]

i will measure it tomorrow. yes, it is a tall form. i have two 10 liter and four 5 liter beakers. in 5 liter beaker you are able to make cca 2 kilos of processors

 

[Palladium]

And here i was using pickle jugs.

Rotfl
:mrgreen: :mrgreen: :mrgreen:

 

[Sucho]

the result is 12,8 grams of Au.
the 10k beaker is 217 mm wide and 350 mm high.

 

[Sucho]

my latest palladium button
the source of Pd were gold plated Ag/Pd relay contacts
XRF shows purity 99,6%

 

[burban]

Wow Sucho Thanks for taking us in and showing us how you roll the pics make all the difference. Keep up the good work.

 

[Sucho]

29,8 grams of Au powder

 

[dtectr]

29,8 grams of Au powder

My friend,
how many times was that powder dissolved & precipitated? Looks VERY nice.
dtectr

 

[Sucho]

it looks very nice because a source material was relay contacs Au95/Ni5 :lol: it was precipitated once and washed few times with DI water.

i am adding a photo of one of todays Pd buttons. notice the surface mirror.purity is 997.

 

[samuel-a]

i am adding a photo of one of todays Pd buttons. notice the surface mirror.purity is 997.

Very nice indeed sucho .

 

[stihl88]

Nice work Sucho, keep them coming

 

[HAuCl4]

Not so easy to get such shiny palladium finish!. Very nice!. 8)

 

[Hannibal Smith]

Nice worrk! The Pd button is cool.


Regards
Max

 

[AurumShine]

very good

 

[Sucho]

1150 grams of Ag75/Pd25 alloy dissolved in nitric.
notice the colour - it corresponds with free nitric in solution.solution is very dark red when nitric is consumed

 

[HAuCl4]

Beautiful wine!. 8) :shock: 8)

 

[Sucho]

here are some photos of precipitating Pd IV complex salt. chlorine was introduced to the solution from chlorine gas generator.