stannous question

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huntersarrow
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stannous question

Post by huntersarrow » March 27th, 2020, 1:36 am

So, being in Australia , the hcl i have is the contaminated kind... the kind that turns red with hydrogen peroxide.

Done my reading and found the thread here relating to this and seems will still be OK to use for AP however will it be OK to use for making stannous? It is 28% and bought from Clarke rubber advertised as filtrite pool acid.

Lino1406
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Re: stannous question

Post by Lino1406 » March 27th, 2020, 1:44 am

Mix with stannous chloride and see if color is acceptable (minimal discoloration)

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g_axelsson
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Re: stannous question

Post by g_axelsson » March 27th, 2020, 1:49 am

I'm sure it will be fine. toss in some tin and let it dissolve.

Stannous is used to test for precious metals in dirty solutions, a bit of dirt from the tin or HCl shouldn't matter a lot.
Test it on a barren solution as well on solution with gold chloride and you'll learn how it reacts.

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huntersarrow
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Re: stannous question

Post by huntersarrow » March 27th, 2020, 3:20 am

Thanks... the contamination is from washing minerals so chemical not physical.
my tin is clean and pure 100%. will give it a go and see what comes out..

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