[sdiy] caps with PCB's in them
anthony
aankrom at bluemarble.net
Thu Jan 31 17:39:52 CET 2008
I actually know quite a bit about the chemistry & toxicology of PCB/dioxins.
I majored in chemistry here at Indiana University and there is a sealed PCB
dump that Westinghouse left years & years ago (and doesn't/didn't want to
pay to clean up). The whole downstream area was an EPA Superfund site for a
while. I thought chloracne came about through chronic exposure to the
dioxins in the PCB's. So I guess in my case in wouldn't be chronic. I thik
my question was mostly acedemic though, because it is quite easy for me to
contribute every ailment I have directly or indirectly from having chronic
pancreatitis. I had to have my spleen out because of scar tissue from the
pancreatitis along with a whole host of other ailments that I won't get into
here. Let's just suffice it to say that if you get pancreatitis and it
should have killed you, it will debilitate you for the rest of your life.
> When you burn PCBs they can produce dioxins (for example: in a
> transformer fire).
>
> Dioxins are extremely poisonous, the primary symptom of dioxin exposure
> is "chlor-acne" a severe and disfiguring skin ailment.
>
> If you have not burst out in plague-like skin lesions, then the PCB
> liquid did not get hot enough to produce dioxins.
>
> On Jan 30, 2008, at 6:32 PM, anthony wrote:
>
>> A while ago I was messing with a Matsushita oil capacitor. I didn't
>> realise that the solder blob at one end was not only soldering the lead
>> to the cap, but also holding the oil in. So a lot of capacitor oil got
>> in my desolering iron and big puffs of it went into my face. I think
>> this thing was in some sort of tube audio equipment, but I can't
>> remember for sure. I was just wondering if anyone knew if Matsushita
>> ever used PCB's in their caps. I ask because I have a Matsushita
>> motor-start oil cap that makes a point of saying that it is NON-PCB. So
>> this begs the question: did they at one time USE PCB's and are making a
>> point of clarifying for environmentally consious end-users or
>> constrasting older caps that weren't so. I looked up the desccription of
>> PCB's in my Merck Index, but it lists the isomers separately - there
>> doesn't seem to be an entry for the mixture that would indubitably be
>> used on the industrial scale in capcitors. It kind of reminded me of
>> what air conditioning freon pumps smell like when you try to use them as
>> vacuum pumps (it works, but they overheat because there's no good way to
>> cool them) and that oil is some kind of heavy ester. I would expect
>> PCB's to smell like mothballs. I have connections at teh University who
>> could run a sample of the oil through a GC/mass-spec., but I thought I'd
>> ask you guys for opinions.
>>
>> It's hard for me to speparate new physical ailments from old ones since
>> I've been suffering from chronic pancreatitis since 2003. But I've had a
>> chronic sinus infection and had to have my spleen out subsequent to
>> having this capacitor come open. My gut feeling is that they are
>> unrelated. The chronic sinus infection is chronic because I had to have
>> my spleen out. But still, from time to time, I wonder...
>>
>> So what do youse guys(goils?) think?
>>
>> Oh wait - I checked and the big 3.5uF/450VAC motor-start cap with
>> "NON-PCB" is a GE cap. The Matsushita is a 0.55uF 2300VAC microwave- oven
>> capacitor. It says, " No PCB's" on it.
>>
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