vav said:To DNIdustry
I have tried to send you PM but its stucked in Outbox don't know why,than I have to posted here
hello owltechSMB can be used too
hello philPhil,
From Patnor " Rick. I used in my video 300 ml od distilled water 25g of iodine crystals and 100g of potassium iodide"
It works in those ratios. Have only done a small test but it works.
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Why are you adding NaOH?hello owltech
1st timer needed help. i did my leaching 1:2:10 on gold plated pins got success in getting gold into solution.then i diluted caustic soda (10gms)into 15 ml distilled water and slowly added it into the solution stirred it well and left it for 10 minutes.then i dissolve 25gms of ascorbic acid in 20 ml distilled water and left it for overnight.nothing happened no gold drop no clear solution.can you suggest what to do now?
Next time use directly SMB to the pregnant solution. It will reduce excess iodine back to iodide and simultaneously drop the gold.hello phil
what will be the next step for the gold containg solution to drop gold first timer pls help i am stucked
can i use smb now??Next time use directly SMB to the pregnant solution. It will reduce excess iodine back to iodide and simultaneously drop the gold.
for high ph levelWhy are you adding NaOH?
SMB work only in acidic conditions. So I am not sure it will do the thing now. Ascorbic acid should work just fine for this - but you need to kill all residual iodine with it, and it takes some quantity of it. You should eventually see the solution to lighten in colour - iodine will be slowly reduced to iodides.can i use smb now??
hello owltech
1st timer needed help. i did my leaching 1:2:10 on gold plated pins got success in getting gold into solution.then i diluted caustic soda (10gms)into 15 ml distilled water and slowly added it into the solution stirred it well and left it for 10 minutes.then i dissolve 25gms of ascorbic acid in 20 ml distilled water and left it for overnight.nothing happened no gold drop no clear solution.can you suggest what to do now?
thanks orvi i will eventually try ascorbic acid again.but if i fail then i will acidify it wid hcl and then use smb.but how much hcl n smb should be used pls clarify.SMB work only in acidic conditions. So I am not sure it will do the thing now. Ascorbic acid should work just fine for this - but you need to kill all residual iodine with it, and it takes some quantity of it. You should eventually see the solution to lighten in colour - iodine will be slowly reduced to iodides.
If you fail to recover your values with ascorbic acid, acidify the solution with HCl and then use SMB.
and how much smb should be used and will it change its colourcan i use smb now??
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