2 Apr
2002
2 Apr
'02
6:26 a.m.
Cadmium?!? Say what? It's tin-antimony and tin-silver.
http://environment.copper.org/e_p_lead.htm The deal is they're cadmium-FREE
solders.
http://misspiggy.gsfc.nasa.gov/ctre/act/techdocs/solder/leadfree.htm
--John
-----Original Message-----
From: owner-classiccmp(a)classiccmp.org
[mailto:owner-classiccmp@classiccmp.org]On Behalf Of Carl Lowenstein
Sent: Tuesday, April 02, 2002 13:37 PM
To: classiccmp(a)classiccmp.org
Subject: Re: Soldering and other skills (was Re: QL-Quality (Was: ZX-81
Question))
From: "Allison"
<ajp166(a)bellatlantic.net>
To: <classiccmp(a)classiccmp.org>
Subject: Re: Soldering and other skills (was Re: QL-Quality
(Was: ZX-81
Question))
Date: Mon, 1 Apr 2002 08:40:54 -0500
Content-Transfer-Encoding: 7bit
From: Chad Fernandez <fernande(a)internet1.net>
But the replacement for lead in plumber's solder is cadmium. And cadmium
is a pretty hazardous material itself.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenstein(a)ucsd.edu How much lead does solder dor electronics contain?
I thought only
solder for pipes contained lead?
The best alloy is 63/37 63%lead 37% tin. Common variety is 60/40.
The lead is not a hazard by inhalation though some of the fluxes can be.
It is a contact hazard over time as it can be transfered from the skin
to lips and injested. Solution, wash hands after using.
Solder for pipes, by mandate has been below 5% lead for years, it
used to be mostly lead {90/10}.