Yes you are correct. That is like testing if oils (carbon and hydrogen
compounds) are poisonous by testing hydrogen cyanide ( HCN ) and using
the nitrogen in the air at the control. Complete obsfuscation.
Marshall
Mike Monett wrote:
==
>> From: sol <sol...@sweetwaterhsa.com>
>> Date: 23 January 2010 6:53:28 AM
>> To: silver-list@eskimo.com
>> Subject: Re: CS>article, "Silver is a potent nerve cell toxicant"
>> Can anyone discredit that study, how it was performed, and its
>> conclusions? Here is the link again:
>>> http://www.environmentalhealthnews.org/ehs/newscience/silver-is-
>>> potent-neurotoxicant
>> I mean aside from saying "it ain't true" can someone really
>> deconstruct it scientifically?
>> thanks,
>> sol
> I've read most of the 32 page study and wouldn't try to discredit
> it but just try to put it into perspective. How accurately does
> this lab test represent a real life situation? They used DNA cells
> floating in a bath of 'pure' silver water' (not blood or plasma).
> At 'high concentrations' the silver was toxic. At very low
> concentrations it seemed to protect the cells. (At least thats how
> it appeared to me.)
> Perhaps I missed it but I couldn't find any description of what
> type of silver it was or how it was prepared or how the strength
> was determined. (Was it silver salt, electrolytic silver etc).
[...]
> I hope other listers will read the study and comment. It makes
> some interesting suggestions about how silver works.
> Finally, I'm not a scientist so I could be misunderstanding the
> study entirely.
>David
Most of these studies use silver nitrate (AgNO3) as the source of
silver ions. In this study, page 8 states:
"or varying concentrations of AgNO3 in water. As a control for any
effect of NO3, we included controls containing NaNO3"
http://ehp.niehs.nih.gov/members/2009/0901149/0901149.pdf
The use of sodium nitrate (NaNO3) as a control is highly misleading.
Silver Nitrate and Sodium Nitrate are completely different
substances.
Sodium Nitrate is a preservative, used in sausages for example. You
can eat it without too much harm.
Silver nitrate is highly corrosive and will destroy most living
things. You cannot eat it. The lethal dose is only 2 gms. Here is
the MSDS sheet:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Material Safety Data Sheet
Silver Nitrate
EMERGENCY OVERVIEW
Appearance: colorless or white. Danger! Strong oxidizer. Contact
with other material may cause a fire. May cause cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood).
May cause liver and kidney damage. Corrosive. Causes eye and skin
burns. May cause severe respiratory tract irritation with possible
burns. May cause severe digestive tract irritation with possible
burns.
Target Organs: Blood, kidneys, liver.
Potential Health Effects
Eye: Causes eye burns. May cause chemical conjunctivitis and corneal
damage.
Skin: Causes skin burns. May cause skin rash (in milder cases), and
cold and clammy skin with cyanosis or pale color.
Ingestion: May cause severe and permanent damage to the digestive
tract. Causes gastrointestinal tract burns. May cause perforation of
the digestive tract. May cause systemic effects. Lethal dose for
humans is 2 grams.
Inhalation: Causes severe irritation of upper respiratory tract with
coughing, burns, breathing difficulty, and possible coma. Causes
chemical burns to the respiratory tract. Aspiration may lead to
pulmonary edema. May cause systemic effects.
Chronic: May cause methemoglobinemia, which is characterized by
chocolate-brown colored blood, headache, weakness, dizziness, breath
shortness, cyanosis (bluish skin due to deficient oxygenation of
blood), rapid heart rate, unconsciousness and possible death.
Effects may be delayed. Chronic inhalation or ingestion may cause
argyria characterized by blue-gray discoloration of the eyes, skin
and mucous membrances. Chronic skin contact may cause permanent
discoloration of the skin.
Section 4 - First Aid Measures
Eyes: Get medical aid immediately. Do NOT allow victim to rub or
keep eyes closed. Extensive irrigation with water is required (at
least 30 minutes).
Skin: Get medical aid immediately. Immediately flush skin with
plenty of soap and water for at least 15 minutes while removing
contaminated clothing and shoes. Wash clothing before reuse. Destroy
contaminated shoes.
Ingestion: Do NOT induce vomiting. If victim is conscious and alert,
give 2-4 cupfuls of milk or water. Never give anything by mouth to
an unconscious person. Get medical aid immediately.
Notes to Physician: Treat symptomatically and supportively.
Section 313 This material contains Nitric Acid, Silver(1+) Salt
(listed as ** undefined **), 100%, (CAS# 7761-88-8) which is subject
to the reporting requirements of Section 313 of SARA Title III and
40 CFR Part 373.
http://avogadro.chem.iastate.edu/MSDS/AgNO3.htm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It is not surprising that any study using silver nitrate as the
source of silver ions will conclude that silver is harmful. But this
is a false conclusion.
Silver ions by themself are non-toxic to humans and have tremendous
healing effects. However, like most substances, silver combined with
other substances can have effects that range from benign to lethal.
This is often used to persuade people that silver ions are harmful,
and should be banned.
Regards,
Mike
==
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