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Chris[_4_] November 25th 09 01:32 PM

washing fruits and vegetables
 
On Nov 19, 7:04 am, brian whatcott wrote:
Chris wrote:
... FDA or CDC websites for more accurate
information. Bleach and peroxide were mentioned, and they are probably
good. I have also heard that potassium permanganate is also effective,
but it might be harder to get a hold of.


Good luck,


Chris


All strong oxidizers. I think potassium permanganate, that former
favorite of chemistry sets for kids, is now discouraged as carcinogenic

Brian W


Wikipedia (I know, not always the best source) has this:

"Almost all applications of potassium permanganate exploit its
oxidizing properties.[2] As a strong oxidant that does not generate
toxic byproducts, KMnO4 has many niche uses."

and this:

"As an oxidant, potassium permanganate can act as a disinfectant. For
example, dilute solutions are used to treat canker sores (ulcers),
disinfectant for the hands and treatment for mild pompholyx,
dermatitis,[4][5] and fungal infections of the hands or feet.[6]
Potassium permanganate, obtainable at pool supply stores, is used in
rural areas to remove iron and hydrogen sulfide (rotten egg smell)
from well and waste water. Historically it was used to disinfect
drinking water.[7]"

Chris

Bruce In Bangkok November 26th 09 12:30 AM

washing fruits and vegetables
 
On Wed, 25 Nov 2009 05:31:13 -0800 (PST), Chris
wrote:

On Nov 19, 7:48 am, Gogarty wrote:
In article
,
says...

On Nov 13, 9:04 pm, Joe wrote:
On Nov 12, 9:43 am, Hanz wrote:


I have also heard that potassium permanganate is also effective,but it might be harder to get a hold of.

That's the word! That's the word! In college we used to make a glass
cleaning solution that consisted of potassium permanganate and sulfuric
acid. Wicked stuff, but your lab glassware got really, really clean.


I kind of doubt that. This from Wikipedia:

"Solid KMnO4 is a strong oxidizer and thus should be kept separated
from oxidizable substances. Reaction with concentrated sulfuric acid
produces the highly explosive manganese(VII) oxide (Mn2O7)."

http://en.wikipedia.org/wiki/Potassium_permanganate

Chris


BUT, the glassware would be so clean..... why, you could hardly see
the pieces :-)

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)

Brian Whatcott November 26th 09 02:12 PM

washing fruits and vegetables
 
Chris wrote:
On Nov 19, 7:04 am, brian whatcott wrote:
Chris wrote:
... FDA or CDC websites for more accurate
information. Bleach and peroxide were mentioned, and they are probably
good. I have also heard that potassium permanganate is also effective,
but it might be harder to get a hold of.
Good luck,
Chris

All strong oxidizers. I think potassium permanganate, that former
favorite of chemistry sets for kids, is now discouraged as carcinogenic

Brian W


Wikipedia (I know, not always the best source) has this:

"Almost all applications of potassium permanganate exploit its
oxidizing properties.[2] As a strong oxidant that does not generate
toxic byproducts, KMnO4 has many niche uses."

and this:

"As an oxidant, potassium permanganate can act as a disinfectant. For
example, dilute solutions are used to treat canker sores (ulcers),
disinfectant for the hands and treatment for mild pompholyx,
dermatitis,[4][5] and fungal infections of the hands or feet.[6]
Potassium permanganate, obtainable at pool supply stores, is used in
rural areas to remove iron and hydrogen sulfide (rotten egg smell)
from well and waste water. Historically it was used to disinfect
drinking water.[7]"

Chris


Here's the MSDS. Not a carcinogen, but harmful if inhaled as a powder.
http://www.jtbaker.com/msds/englishhtml/p6005.htm


Brian W

Richard Casady November 29th 09 01:43 PM

washing fruits and vegetables
 
On Fri, 13 Nov 2009 20:28:27 +0700, Bruce
wrote:

Certainly if you can smell it you have enough; in fact you have more
then you need.


The threshold for smelling Cl is one part per million. One gram per
ton.

Casady

Bruce In Bangkok November 30th 09 12:37 AM

washing fruits and vegetables
 
On Sun, 29 Nov 2009 07:43:15 -0600, Richard Casady
wrote:

On Fri, 13 Nov 2009 20:28:27 +0700, Bruce
wrote:

Certainly if you can smell it you have enough; in fact you have more
then you need.


The threshold for smelling Cl is one part per million. One gram per
ton.

Casady


Depends on the nose I suppose, but actually the quote comes from the
Water Supervisor at Udon Airbase in the days I worked there. I had
dosed a well with what seemed to be a small amount of sodium
hypochlorite and turned the water into Clorox and since I had gotten
the stuff from the Water Plant I went back to bitch, whereupon I was
given a water test kit and the instructions that "you use less then
you think is enough" together with the "if it stinks you got too much"
statement.

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)

Magnus December 4th 09 08:52 PM

washing fruits and vegetables
 
On Mon, 30 Nov 2009 07:37:40 +0700, Bruce In Bangkok
wrote:

On Sun, 29 Nov 2009 07:43:15 -0600, Richard Casady
wrote:

On Fri, 13 Nov 2009 20:28:27 +0700, Bruce
wrote:

Certainly if you can smell it you have enough; in fact you have more
then you need.


The threshold for smelling Cl is one part per million. One gram per
ton.

Casady


Depends on the nose I suppose, but actually the quote comes from the
Water Supervisor at Udon Airbase in the days I worked there. I had
dosed a well with what seemed to be a small amount of sodium
hypochlorite and turned the water into Clorox and since I had gotten
the stuff from the Water Plant I went back to bitch, whereupon I was
given a water test kit and the instructions that "you use less then
you think is enough" together with the "if it stinks you got too much"
statement.

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)


ROFTL!!!!!!!!
"at Udon Airbase in the days I worked there"
Another hilarious raving from the megalomaniac jBangkok dork.

"if it stinks you got too much"
AH! AH! AH! AH! AH! AH!
The fartbag fully deserves his nickname of "Brown-eyed Mullet"

Mort
"there are no docks in Bangkok" - by Bruce-in-Bull**** aka GSS, on 9
July 2009



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