[volt-nuts] low emf solder

Neville Michie namichie at gmail.com
Fri Oct 28 17:33:58 EDT 2016


LD50 is not the only consideration. From Wikipedia:

"The International Agency for Research on Cancer has classified cadmium and cadmium compounds as carcinogenic to humans."

FWIW

Neville Michie


> On 29 Oct 2016, at 8:09 AM, NeonJohn <jgd at neon-john.com> wrote:
> 
> Let's don't get carried away with cadmium toxicity.  Yes, it is toxic is
> sufficient dose but the LD50 dose for Cd is  750 mg/kg while the value
> for lead is around 450mg/kg.
> 
> As far as dumping it in a solder pot, that works just fine for me.  It's
> cheaper to buy 50/50 plumber's bar solder and then add the appropriate
> amount of lead to get to the eutectic point.
> 
> One should also realize that cad-plated hardware is still available.  I
> get mine from McMaster-Carr.
> 
> John
> 
> 
> On 10/28/2016 12:39 PM, ed breya wrote:
>> I would recommend against trying to use cadmium - it's very toxic, which
>> is why Cd-based solders are rare nowadays. They are probably still made,
>> but for lab or industrial use with proper handling. If you try to alloy
>> it with Sn yourself without proper handling, you could get poisoned. You
>> can't just throw the ingredients in a solder pot and expect good results.
>> 
>> Ed
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> 
> -- 
> John DeArmond
> Tellico Plains, Occupied TN
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