Stannous chloride crystels ratio

[Benjaminza]

Hey guys can anyone please tell me what ratio I use when rehydrating my stannous chloride crystels with HCI.



Will post a photo of the container they came in.

 

[Benjaminza]

 

[FrugalRefiner]

See Lou's formula in A freaking nightmare on 4th Street.

Dave

 

[Benjaminza]

Thanks Dave. A totally non related question...

After having my chips in ap to remove legs and base metals...

When I have rinsed the ap off what do I do with rinse water?

Stock pot? Waste bucket with copper? Waste bucket with iron? Or last one?

 

[Benjaminza]

Thanks Dave I had a read and found it very informative...problem is I couldn't find any pure tin close to me and what I could find was above my allowed budget...

Being a start up in all this my wife only allow me 3 months of syphoning money off of my salary until she expect this hobby/business to be self sustainable and she also only gave me a budget of about a thousand South African Rand. Which calculates to a little more than US$ 50.

 

[Yggdrasil]

Thanks Dave. A totally non related question...

After having my chips in ap to remove legs and base metals...

When I have rinsed the ap off what do I do with rinse water?

Stock pot? Waste bucket with copper? Waste bucket with iron? Or last one?

The AP should not have values in them unless there is some exposed Pd, and even then very little.
Store it in a waste bucket and when it is getting 3/4 full, put in a Copper bar and stir/bubble air for a day or two and then remove the copper,
making sure you brush off any blacks into the solution.
Let the solution sit for the time it need to all to settle.
Then you carefully siphon off all liquids and collect any black mud from the bottom.
Treat the liquid according to the waste treatment in this forum.

 

[Yggdrasil]

Thanks Dave I had a read and found it very informative...problem is I couldn't find any pure tin close to me and what I could find was above my allowed budget...

Being a start up in all this my wife only allow me 3 months of syphoning money off of my salary until she expect this hobby/business to be self sustainable and she also only gave me a budget of about a thousand South African Rand. Which calculates to a little more than US$ 50.

Heat a few PCBs and collect the extra solder from it.

 

[Benjaminza]

The AP should not have values in them unless there is some exposed Pd, and even then very little.
Store it in a waste bucket and when it is getting 3/4 full, put in a Copper bar and stir/bubble air for a day or two and then remove the copper,
making sure you brush off any blacks into the solution.
Let the solution sit for the time it need to all to settle.
Then you carefully siphon off all liquids and collect any black mud from the bottom.
Treat the liquid according to the waste treatment in this forum.

What do I do with the black mud?

 

[Benjaminza]

Heat a few PCBs and collect the extra solder from it.

I have tried to go that route. I took the solder and heated it until liquid. I then rolled it to make a thin sheet of solder. Cut up the sheet and boiled it in HCI. I then filtered off the black stuff that didn't want to go into solution and kept the liquid. Problem is it didn't work...or maybe it did...not sure. Dont have any known gold solution to teat with.

What happened since then though is the liquid have for some or other reason precipitated something that resembles glitter at the bottom of the container.

Not sure what it is. Will try and get a photo and post.

 

[Benjaminza]

 

[Yggdrasil]

I have tried to go that route. I took the solder and heated it until liquid. I then rolled it to make a thin sheet of solder. Cut up the sheet and boiled it in HCI. I then filtered off the black stuff that didn't want to go into solution and kept the liquid. Problem is it didn't work...or maybe it did...not sure. Dont have any known gold solution to teat with.

What happened since then though is the liquid have for some or other reason precipitated something that resembles glitter at the bottom of the container.

Not sure what it is. Will try and get a photo and post.

When you have Stannous crystals you do not need to dissolve the tin completely.
Make your stannous as per instruction and then add some Tin to it and let sit in the solution.
It will make the Stannous last longer.

Edited for clarity

 

[Paul73]

View attachment 53069

When you have Stannous crystals you do not need to dissolve the tin completely.
Make your stannous as per instruction and then add some Tin to it and let sit in the solution.
It will make the Stannous last longer.

Edited for clarity

Here is a formula I was given:
1 gram of stannous chloride
18.2 ml distilled water
3.6 ml 17% Hydrochloric acid (Muriatic Acid)
.3 grams of tin bullion as a keeper

 

[Yggdrasil]

There is absolutely no reason to do it stochiometric,
Add Crystals 1-2 grams, dissolve it in water and add HCl in any percentage.
Stronger acid means a bit more water, then drop a ball of Tin in it and its done.
For reference, use same amount every time, then you will be accustomed with the reaction.

Personally I let HCl Water mix saturate and let the undissolved Tin stay in the solution.

 

[chrundle_the_great]

Here is a formula I was given:
1 gram of stannous chloride
18.2 ml distilled water
3.6 ml 17% Hydrochloric acid (Muriatic Acid)
.3 grams of tin bullion as a keeper

I just did this a few weeks ago (first time making stannous) and nothing happened. After about a week in turned into a white gel

 

[Yggdrasil]

I just did this a few weeks ago (first time making stannous) and nothing happened. After about a week in turned into a white gel

As I told Paul, there is no reason to follow this recipe to the letter.

What you need is to dissolve some Tin in HCl, that's it.
Then if you have some extra tin in it, so its saturated it will last longer.
What you need is:
HCL, preferably without additives and
Tin, any Tin will do but has to be the elemental Tin (Sn) not the boxes or roofs.

If you have Stannous crystals and dissolve it in HCl it works too but will cost more.