stannous help needed please

[leondavids]

Hi great forum , at a point now that i need to test for the presence of gold in my solution .I have not made any testing solution yet.Would it be okay to use a 40% tin - lead solder ? and should i just dissolve it in hydrochloric acid and filter it ?

Thanks in advance for advice.

 

[jimdoc]

Hi great forum , at a point now that i need to test for the presence of gold in my solution .I have not made any testing solution yet.Would it be okay to use a 40% tin - lead solder ? and should i just dissolve it in hydrochloric acid and filter it ?

Thanks in advance for advice.

No on the 40% tin solder, look for solder that is at least 95% tin - lead free solder. The other 5% will be antimony and will not cause a problem, it will be black particles that can be filtered out.

Jim

 

[leondavids]

Hi great forum , at a point now that i need to test for the presence of gold in my solution .I have not made any testing solution yet.Would it be okay to use a 40% tin - lead solder ? and should i just dissolve it in hydrochloric acid and filter it ?

Thanks in advance for advice.

No on the 40% tin solder, look for solder that is at least 95% tin - lead free solder. The other 5% will be antimony and will not cause a problem, it will be black particles that can be filtered out.

Jim

Thanks Jim ,

 

[philddreamer]

Leon, try an electronics supply store & see if they have the proper tin/silver solder. Like Jim stated, try to get as high as possible tin % & with NO lead.

Here in the US we have Radio Shack, they sell 96%tin/4%silver solder wire & it has worked for me. Others have mentioned tin fishing weights...

Take care!

Phil

 

[Geo]

plumbing supplies carry lead free solder, be sure to check contents.

 

[lazersteve]

You can also buy pure tin powder from my webstore.

Steve

 

[lawsonland]

This works for me, I have stannous chloride crystals and I just put some crystals on what i want to test in my spot plate or filter paper and seems to work.
Keep it sealed and never have to worry about mixing anything

If this isn't the right way to do it someone can tell me why?

 

[arthur kierski]

Lawsonland-----i do the same as you with sncl2 cristals and i am also satisfied with the results----no precious metal---no colour change-----
regards
Arthur

 

[4metals]

It's not the wrong way just a different way. Often on a piece of paper the subtle colors of PGM's develop and that may not be possible with a crystal of stannous chloride. Subtle changes can also be detected on a white spot plate. Possibly on the spot plate the crystal may work similarly.

 

[leondavids]

Leon, try an electronics supply store & see if they have the proper tin/silver solder. Like Jim stated, try to get as high as possible tin % & with NO lead.

Here in the US we have Radio Shack, they sell 96%tin/4%silver solder wire & it has worked for me. Others have mentioned tin fishing weights...

Take care!

Phil

Thanks you all for you info , i found a school lab supply store that just has it all. Looks like heaven in this place and pretty cheap too.

 

[philddreamer]

Excellent! 8)

Phil