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Where did the lead come from ? I wouldn't mind betting it's natural, as is RadonWilliam Sommerwerck wrote:
A few years back I bought a pound roll of fine Ersin multicore. I do so
little soldering nowadays that this roll is likely to outlast me, even if I
live another 20 years.
The flux isn't exposed to air, so the only way it can deteriorate is the
normal thermal degradation that any organic substance undergoes. I suspect
this occurs very slowly.
Again, we turn to the Lady from Philadelphia for advice: "Why don't you just
try soldering few test joints and seeing how well the solder works?" Duh.
PS: I'm bothered that electronic products increasingly have RoHS labels on
the box, and statements that they use non-lead solder. I really /don't/
believe that a lot of lead is leaching from waste sites into the water
supply, so we aren't likely to see much, if any, reduction in the amount of
lead (and lead compounds) in our water supply (is there any hard science on
this?), while the reliability of electronic products is likely to decline.
I like to say that there is no such thing as a hazardous substance. The
hazard occurs from how the substance is used (or misused).
I'm not so sure, here in Western Australia we had hundreds, if not
thousands of birds literally falling out of the sky from lead poisoning.
The whole town of Esperance was polluted and had to be cleaned at great
expense. Lead is still being found in rainwater tanks.
Lead is a deadly poison that accumulates in the body, it's not excreted.
We made our hydrogen in coke bottles, and sometimes the reaction got so"Davo" <Dave@gmail.com> wrote in message
news:49dfe231$1_7@news.peopletelecom.com.au...
Theo wrote:
For rosin read resin.
Or as multicore called it - "Ersin"
As a youth I used Bakers Soldering Flux and Aluminium foil to make
Hydrogen for our lighter than air balloons. Bakers Soldering Flux was 32%
Hydrochloric Acid.
Caustic Soda and Aluminium works much better for producing hydrogen, but you
have to watch the temperature as the mixture gets mighty hot and tends to
produce steam too.
In the days of coal gas, I used to inflate balloons using our gas tap under
the sink. I once let one go with a card attached and I got a reply from over
100 miles away!
The gas we get now jest aint light enough!
"Davo" <Dave@gmail.com> wrote in message
news:49dfe231$1_7@news.peopletelecom.com.au...
Theo wrote:
For rosin read resin.
Or as multicore called it - "Ersin"
As a youth I used Bakers Soldering Flux and Aluminium foil to make
Hydrogen for our lighter than air balloons. Bakers Soldering Flux was 32%
Hydrochloric Acid.
Caustic Soda and Aluminium works much better for producing hydrogen, but you
have to watch the temperature as the mixture gets mighty hot and tends to
produce steam too.
In the days of coal gas, I used to inflate balloons using our gas tap under
the sink. I once let one go with a card attached and I got a reply from over
100 miles away!
The gas we get now jest aint light enough!
"When I were a lad"....
Oh indeed. But the cynic in me says H&S legislation is more to prevent anyI believe -- in Europe at least -- it's more to do with H&S in the work
place rather than the environment.
I know of no cases of lead poisoning from the use of lead-based solder. I
touch solder directly when I work with it, and am not worried about lead
getting into my system.
Well lead is one of the easiest extracted metals so certain parts of theI have no argument with people worrying about the huge amounts of
electronic equipment being dumped into landfills. The issue is whether
potentially hazardous substances in that equipment actually get into the
air or water.
Lead additives in petrol / gasoline stopped so long ago, that should be noWell lead is one of the easiest extracted metals so certain parts of the
world are already 'contaminated' with it. It's a bit different when it's
modified so large concentrations can be airborne.
Here in the former Colonies, we have solved a more vexing disposal problem:Ian Jackson wrote:
In message <504a4ce2e9dave@davenoise.co.uk>, "Dave Plowman (News)"
dave@davenoise.co.uk> writes
In article <grpvif$6te$1@news.motzarella.org>,
William Sommerwerck <grizzledgeezer@comcast.net> wrote:
PS: I'm bothered that electronic products increasingly have RoHS
labels on the box, and statements that they use non-lead solder. I
really /don't/ believe that a lot of lead is leaching from waste sites
into the water supply, so we aren't likely to see much, if any,
reduction in the amount of lead (and lead compounds) in our water
supply (is there any hard science on this?), while the reliability of
electronic products is likely to decline.
I like to say that there is no such thing as a hazardous substance.
The hazard occurs from how the substance is used (or misused).
I believe - in Europe at least - it's more to do with H&S in the work
place rather than the environment.
More like job creation for the legislators in Brussels.
Oh those morons. They screwed this one up rotten. Heard of WEEE ?
Implemented nowhere as far as I can see. My local council didn't even
reply to a request as to where I should dispose of old computers or CFLs.
http://en.wikipedia.org/wiki/Waste_Electrical_and_Electronic_Equipment_Directive
Graham
And then you all die of lead poisoning.Here in the former Colonies, we have solved a more vexing disposal problem:
what to do with nuclear power plant waste. We just keep dumping it into
the pools conveniently located adjacent to each plant. After a while, it
decays to (um) lead?
Cautious. I'd replace it with something else.Actually, I'm just in the process of having a small house extension
built. The flashing (where the new lean-to roof meets the old wall) is
lead. Should I be worried?
It is excreted, but fairly slowly. It tends to hang around in the bonesLead is a deadly poison that accumulates in the body, it's not excreted.
Wash your hands and face before eating, rubbing your eyes, smoking orIn message <grqag7$469$1@news.motzarella.org>, Bryce
invalid@invalid.invalid> writes
Here in the former Colonies, we have solved a more vexing disposal
problem:
what to do with nuclear power plant waste. We just keep dumping it into
the pools conveniently located adjacent to each plant. After a while, it
decays to (um) lead?
And then you all die of lead poisoning.
Actually, I'm just in the process of having a small house extension
built. The flashing (where the new lean-to roof meets the old wall) is
lead. Should I be worried?
--
Ian
It is an issue when the Lead is heated to the point of vaporization. Allow"Dave Plowman (News)" wrote:
Well lead is one of the easiest extracted metals so certain parts of the
world are already 'contaminated' with it. It's a bit different when it's
modified so large concentrations can be airborne.
Lead additives in petrol / gasoline stopped so long ago, that should be no
problem for airborne pollution.
Graham
Well, you lost that bet. It came from lead ore dust from ship loadWhere did the lead come from ? I wouldn't mind betting it's natural, as
is Radon gas in Cornwall, UK from decaying isotopes in granite.
countries with high concentrations of various contamination. Imagine little"Dave Plowman (News)" wrote:
William Sommerwerck <grizzledgeezer@comcast.net> wrote:
PS: I'm bothered that electronic products increasingly have RoHS
labels
on the box, and statements that they use non-lead solder. I really
/don't/ believe that a lot of lead is leaching from waste sites into
the
water supply, so we aren't likely to see much, if any, reduction in
the
amount of lead (and lead compounds) in our water supply (is there any
hard science on this?), while the reliability of electronic products
is
likely to decline.
I like to say that there is no such thing as a hazardous substance.
The
hazard occurs from how the substance is used (or misused).
I believe - in Europe at least - it's more to do with H&S in the work
place rather than the environment.
Not even remotely. Aside from the non-existent electronics recycling
plants.
Graham
Actually there is a lot of home recycling of electronics in 3rd world
It's fine. Don't worry about it.In a burst of enthusiasm when I was much younger, I bought a large reel
of solder which I barely used.
It must have been at least 20 or more years ago. It looks similar to this:
http://img-europe.electrocomponents.com/largeimages/C557130-01.jpg
Now I need to do some soldering again. Would that old 60/40 multicore
of mine have deteriorated?
I'm thinking the rosin in the multicores may have gone off in some way
because when I tin the tip and then leave it unused for 10 minutes, it
turns brown and uneven on the tip. I'm using brand new tips.
Maybe this is normal and happens even with less old 60/40 solder?
by an armed copper.Release. Balloon rises into the blue. Smouldering string reaches Jetex
fuze. Fuze ignites and fizzes. Balloon explodes with either a loud bang
(if the hydrogen contains a fair proportion of air), or a whoop (if it
is pure).
You'd probably get 20 years for doing that today!
You'd be lucky to get prison time, more likely to get shot in the head
I'm still using 30 year old Sn/Pb cored solder - it's perfect.In a burst of enthusiasm when I was much younger, I bought a large reel
of solder which I barely used.
It must have been at least 20 or more years ago. It looks similar to
this:http://img-europe.electrocomponents.com/largeimages/C557130-01.jpg
Now I need to do some soldering again. Would that old 60/40 multicore
of mine have deteriorated?
I'm thinking the rosin in the multicores may have gone off in some way
because when I tin the tip and then leave it unused for 10 minutes, it
turns brown and uneven on the tip. I'm using brand new tips.
Maybe this is normal and happens even with less old 60/40 solder?
Are they Antex bits? I've noticed some "new" (old stock) tips which I haveI'm thinking the rosin in the multicores may have gone off in some way
because when I tin the tip and then leave it unused for 10 minutes, it
turns brown and uneven on the tip. I'm using brand new tips.
It's the only material which does that job properly, so no.Actually, I'm just in the process of having a small house extension
built. The flashing (where the new lean-to roof meets the old wall) is
lead. Should I be worried?
cement/mortar has gone hard now. I guess I'll just have to suffer theIn article <GOMhw5YhJL4JFwOk@g3ohx.demon.co.uk>,
Ian Jackson <ianREMOVETHISjackson@g3ohx.demon.co.uk> wrote:
Actually, I'm just in the process of having a small house extension
built. The flashing (where the new lean-to roof meets the old wall) is
lead. Should I be worried?
It's the only material which does that job properly, so no.
Thanks for that advice. I won't bother to rip it out. Anyway, the
Indeed. If you drink the rainwater collected from it for the next 100In message <504ac4dae3dave@davenoise.co.uk>, "Dave Plowman (News)"
dave@davenoise.co.uk> writes
In article <GOMhw5YhJL4JFwOk@g3ohx.demon.co.uk>,
Ian Jackson <ianREMOVETHISjackson@g3ohx.demon.co.uk> wrote:
Actually, I'm just in the process of having a small house extension
built. The flashing (where the new lean-to roof meets the old wall) is
lead. Should I be worried?
It's the only material which does that job properly, so no.
Thanks for that advice. I won't bother to rip it out. Anyway, the
cement/mortar has gone hard now. I guess I'll just have to suffer the
consequences.