Edouard Bastarache on thu 15 may 03
Bleach
Bleach is not an adequate biocide because if one uses bleach as a
preventive biocid in the conservation of a ceramic product containing
organic matter, its short duration effect will not be able to effectively
protect this product over time.
Bleach can be used as a disinfecting material for cleaning, with a
temporary and effective action, containers and other equipment. But, it is
not not compatible with ceramic products for ensuring their conservation,
i.e:
- its high pH, which deflocculates clays at the beginning of its
introduction into a liquid glaze, decreases thereafter producing the
opposite effect (flocculation), which can be disastrous for the ceramicist
(worse than the bacteria), if he has set the viscosity of his product right
after having introduced bleach.
- Or the effect of the bleach pH is straightforwardly incompatible with the
product because it causes too great modifications of its properties
Conclusion :
Bleach is an excellent disinfectant, but its high pH and its short duration
effect make it a temporary cleaning material not very compatible, as a
stable protective biocide, with ceramic products
Later,
"Ils sont fous ces Quebecois"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
http://sorel-tracy.qc.ca/~edouardb/
http://perso.wanadoo.fr/smart2000/index.htm
Lily Krakowski on thu 15 may 03
Edouard: We used to put Lysol in. Not the spray stuff but the liquid. As
I recall that worked...Of course this was half a century ago when the risks
of any material were simply poopoohed. IS IT OKAY TO USE? The bottle does
not say what is in it--just to avoid it in eyes,that skin contact calls for
rinsing off with water, and swallowing calls for alrge amounts of milk,
eaggwhites, gelatin solution and water....That probably will sugggest what
it is made of....
Edouard Bastarache writes:
> Bleach
>
>
> Bleach is not an adequate biocide because if one uses bleach as a
> preventive biocid in the conservation of a ceramic product containing
> organic matter, its short duration effect will not be able to effectively
> protect this product over time.
>
> Bleach can be used as a disinfecting material for cleaning, with a
> temporary and effective action, containers and other equipment. But, it is
> not not compatible with ceramic products for ensuring their conservation,
> i.e:
> - its high pH, which deflocculates clays at the beginning of its
> introduction into a liquid glaze, decreases thereafter producing the
> opposite effect (flocculation), which can be disastrous for the ceramicist
> (worse than the bacteria), if he has set the viscosity of his product right
> after having introduced bleach.
> - Or the effect of the bleach pH is straightforwardly incompatible with the
> product because it causes too great modifications of its properties
>
> Conclusion :
> Bleach is an excellent disinfectant, but its high pH and its short duration
> effect make it a temporary cleaning material not very compatible, as a
> stable protective biocide, with ceramic products
>
>
>
> Later,
>
>
>
>
> "Ils sont fous ces Quebecois"
> Edouard Bastarache
> Irreductible Quebecois
> Indomitable Quebeker
> Sorel-Tracy
> Quebec
> edouardb@sorel-tracy.qc.ca
> http://sorel-tracy.qc.ca/~edouardb/
> http://perso.wanadoo.fr/smart2000/index.htm
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
Lili Krakowski
P.O. Box #1
Constableville, N.Y.
(315) 942-5916/ 397-2389
Be of good courage....
Edouard Bastarache on thu 15 may 03
Hélo Lilly,
Lysol,
CAS# 12772-68-8.
Moderately toxic to humans by ingestion.
Human systemic effects by ingestion of large amounts:
-general anesthetic,
-coma,
-vascular relaxation,
-respiratory system effects,
-gastrointestinal system effects,
-renal failure,
-decrease urine volume,
-metabolic acidosis.
Do not confuse with tea.
Later,
"Ils sont fous ces Quebecois"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
http://sorel-tracy.qc.ca/~edouardb/
http://perso.wanadoo.fr/smart2000/index.htm
----- Original Message -----
From: Lily Krakowski
To:
Sent: Thursday, May 15, 2003 5:08 PM
Subject: Re: smelly clay (The use of bleach)
> Edouard: We used to put Lysol in. Not the spray stuff but the liquid.
As
> I recall that worked...Of course this was half a century ago when the
risks
> of any material were simply poopoohed. IS IT OKAY TO USE? The bottle
does
> not say what is in it--just to avoid it in eyes,that skin contact calls
for
> rinsing off with water, and swallowing calls for alrge amounts of milk,
> eaggwhites, gelatin solution and water....That probably will sugggest what
> it is made of....
>
>
>
>
> Edouard Bastarache writes:
>
> > Bleach
> >
> >
> > Bleach is not an adequate biocide because if one uses bleach as a
> > preventive biocid in the conservation of a ceramic product containing
> > organic matter, its short duration effect will not be able to
effectively
> > protect this product over time.
> >
> > Bleach can be used as a disinfecting material for cleaning, with a
> > temporary and effective action, containers and other equipment. But, it
is
> > not not compatible with ceramic products for ensuring their
conservation,
> > i.e:
> > - its high pH, which deflocculates clays at the beginning of its
> > introduction into a liquid glaze, decreases thereafter producing the
> > opposite effect (flocculation), which can be disastrous for the
ceramicist
> > (worse than the bacteria), if he has set the viscosity of his product
right
> > after having introduced bleach.
> > - Or the effect of the bleach pH is straightforwardly incompatible with
the
> > product because it causes too great modifications of its properties
> >
> > Conclusion :
> > Bleach is an excellent disinfectant, but its high pH and its short
duration
> > effect make it a temporary cleaning material not very compatible, as a
> > stable protective biocide, with ceramic products
> >
> >
> >
> > Later,
> >
> >
> >
> >
> > "Ils sont fous ces Quebecois"
> > Edouard Bastarache
> > Irreductible Quebecois
> > Indomitable Quebeker
> > Sorel-Tracy
> > Quebec
> > edouardb@sorel-tracy.qc.ca
> > http://sorel-tracy.qc.ca/~edouardb/
> > http://perso.wanadoo.fr/smart2000/index.htm
> >
> >
____________________________________________________________________________
__
> > Send postings to clayart@lsv.ceramics.org
> >
> > You may look at the archives for the list or change your subscription
> > settings from http://www.ceramics.org/clayart/
> >
> > Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
>
>
>
> Lili Krakowski
> P.O. Box #1
> Constableville, N.Y.
> (315) 942-5916/ 397-2389
>
> Be of good courage....
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
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