ACTSNYC@CS.COM on mon 18 dec 00
=20
> ---------- Forwarded message ----------
> Date: Sun, 17 Dec 2000 18:08:43 -0500
> From: Edouard Bastarache
> Reply-To: Ceramic Arts Discussion List
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Re: Lithium glazes
> =20
> Hello all,
> =20
> do not confuse lead with lithium.
> In case you do not know, which I doubt very much,
> it is an entirely different chemical, at least in my book. <
My, my. You actually might benefit from using lithium-glazed ware.
> =20
> Secondly, hypotheses are there to be proved,
> so, where are the facts and data???? <
At present what we know is that any chemical can be leached from bad glazes=20
in high amounts. Some barium metal tests I've seen were as high as 4000ppm.=
=20
And a number of years ago there was an iron metallic glaze that leached way=20
over 10,000 ppm. A cup coated with this glaze produced all the symptoms of=20
hemochromatosis in the lawyer who drank coffee from it all day. =20
Investigators at first thought his wife (a potter) was poisoning him. =20
Wasn't lucky for all involved that the investigators didn't simply rule out=20
checking the glaze because no such case was reported in the literature?
While I don't have data on lithium, all the other metals for which I have=20
data indicate that all glaze ingredients leach from bad glazes. Obviously,=20=
a=20
lithium-containing glaze can leach lithium. And it is theoretically possibl=
e=20
to leach lithium from glazes in amounts sufficient to push a patient on=20
lithium over their therapeutic dose since this wouldn't take much.
> That is your problem not mine; it is your hypothesis, prove it.
I don't have to prove anything has happened, only that it is possible. And=20
that is already clear from existing analogous data. But I'd think a doctor=
=20
responsible for the health of his patients would want to remain=20
intellectually open to considering all possibilities when looking for a=20
diagnosis. =20
Monona Rossol
ACTS=20
191 Thompson St., #23
NYC NY 10012-2586 212/777-0062
ACTSNYC@cs.com=20
> answering: =20
> Edouard Bastarache
> Irr=E9ductible Qu=E9becois
> Sorel-Tracy
> Dans / In "La Belle Province"
> edouardb@sorel-tracy.qc.ca
> http://www.sorel-tracy.qc.ca/~edouardb/
Edouard Bastarache on mon 18 dec 00
"While I don't have data on lithium"
We need facts!!! Period
Later,
Edouard Bastarache
Irr=E9ductible Qu=E9becois
Sorel-Tracy
Dans / In "La Belle Province"
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/
----- Message d'origine -----
De :
=C0 :
Envoy=E9 : 18 d=E9cembre, 2000 19:18
Objet : Re: Lithium glazes (fwd)
> ---------- Forwarded message ----------
> Date: Sun, 17 Dec 2000 18:08:43 -0500
> From: Edouard Bastarache
> Reply-To: Ceramic Arts Discussion List
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: Re: Lithium glazes
>
> Hello all,
>
> do not confuse lead with lithium.
> In case you do not know, which I doubt very much,
> it is an entirely different chemical, at least in my book. <
My, my. You actually might benefit from using lithium-glazed ware.
>
> Secondly, hypotheses are there to be proved,
> so, where are the facts and data???? <
At present what we know is that any chemical can be leached from bad glaz=
es
in high amounts. Some barium metal tests I've seen were as high as 4000p=
pm.
And a number of years ago there was an iron metallic glaze that leached w=
ay
over 10,000 ppm. A cup coated with this glaze produced all the symptoms =
of
hemochromatosis in the lawyer who drank coffee from it all day.
Investigators at first thought his wife (a potter) was poisoning him.
Wasn't lucky for all involved that the investigators didn't simply rule o=
ut
checking the glaze because no such case was reported in the literature?
While I don't have data on lithium, all the other metals for which I have
data indicate that all glaze ingredients leach from bad glazes. Obviousl=
y,
a
lithium-containing glaze can leach lithium. And it is theoretically
possible
to leach lithium from glazes in amounts sufficient to push a patient on
lithium over their therapeutic dose since this wouldn't take much.
> That is your problem not mine; it is your hypothesis, prove it.
I don't have to prove anything has happened, only that it is possible. A=
nd
that is already clear from existing analogous data. But I'd think a doc=
tor
responsible for the health of his patients would want to remain
intellectually open to considering all possibilities when looking for a
diagnosis.
Monona Rossol
ACTS
191 Thompson St., #23
NYC NY 10012-2586 212/777-0062
ACTSNYC@cs.com
> answering:
> Edouard Bastarache
> Irr=E9ductible Qu=E9becois
> Sorel-Tracy
> Dans / In "La Belle Province"
> edouardb@sorel-tracy.qc.ca
> http://www.sorel-tracy.qc.ca/~edouardb/
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