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liquid metal! :D - Page 4

post #31 of 63
Quote:
Originally Posted by Omri
the commercial version of mercury is poisonous but in a pure metal form (also better heat transfer!) it cant do any harm! and magnets has no effect on mercury...
Huh? Can you tell me what the difference between "Hg" and the commercial version of "Hg"? What else is added to make it poisonous?
    
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post #32 of 63
Quote:
Originally Posted by pbasil1
ok so back on topic, the idea of using liquid metal to dissapate the heat is a great one, its just the pump would have to be massive and use tons of power....and finding a liquid metal that conducts heat is kinda hard too, most of them dont do it nearly as well as AL, let alone some silver....

but im expecting in the future there to be some crazy superconductors out there for relatively cheap as they get created by the mad scientists....
heh bud... ever hear of Sapphires' attempt at liquid metal cooling "nano-coolers"

The article

Anyways it worked, but in the long run was to $$$ to be cost effective.
post #33 of 63
The next thing you should consider is how available and expensive is it in its non toxic form. Is this feasible?
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post #34 of 63
Quote:
Originally Posted by Phallic Moron
Huh? Can you tell me what the difference between "Hg" and the commercial version of "Hg"? What else is added to make it poisonous?
Thats what Im wondering...
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post #35 of 63
Thread Starter 
Quote:
Even though it is far less toxic than its organic compounds, elemental mercury still poses significant environmental pollution and remediation problems due to the fact that mercury forms such organic compounds inside living organisms. Inorganic mercury is less toxic than organic compounds (molecules containing carbon).
Wikipedia.org
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post #36 of 63
Quote:
Originally Posted by Omri
the commercial version of mercury is poisonous but in a pure metal form (also better heat transfer!) it cant do any harm! and magnets has no effect on mercury...

actualy that is not true. everything is affected by magnetic fields. just not as much!

they have special electro magnets that will even make a mouse float in the air!

and for the comment that copper is the best heat conductor that is false. you got it confused with it conducting electric the best!
    
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post #37 of 63
Heavy metal poisoning is heavy metal poisoning.

Mercury in any form is toxic. The difference lies in how it is absorbed, the clinical signs and symptoms, and the response to treatment modalities. Mercury poisoning can result from vapor inhalation, ingestion, injection, or absorption through the skin.

Neurologic, gastrointestinal, and renal systems are the most commonly affected organ systems in mercury exposure.


Organic mercury - Most devastating to the CNS

Short-chained (methylmercury) - Affects the CNS

Long-chained - Subacute/chronic effects similar to that of inorganic mercury exposure

Elemental mercury - Primary neurologic toxicity

Inorganic mercury salts

Acute - Severe corrosive gastroenteritis, acute tubular necrosis

Subacute or chronic - GI, neurologic, and renal dysfunction
Elemental mercury (Hg) is found in liquid form, which easily vaporizes at room temperature and is well absorbed (80%) through inhalation. Its lipid-soluble property allows for easy passage through the alveoli into the bloodstream and red blood cells (RBCs). Once inhaled, elemental mercury is mostly converted to an inorganic divalent or mercuric form by catalase in the erythrocytes. This inorganic form has similar properties to inorganic mercury (eg, poor lipid solubility, limited permeability to the blood brain barrier, and excretion in feces). Small amounts of nonoxidized elemental mercury continue to persist and account for central nervous system toxicity.

Elemental mercury as a vapor has the ability to penetrate the CNS, where it is ionized and trapped, attributing to its significant toxic effects. Elemental mercury is not well absorbed by the GI tract and, therefore, when ingested (eg, thermometers), is only mildly toxic.

Inorganic mercury, found mostly in the mercuric salt form (eg, batteries), is highly toxic and corrosive. It gains access to the body orally or dermally and is absorbed at a rate of 10% of that ingested. It has a nonuniform mode of distribution secondary to poor lipid solubility and accumulates mostly in the kidney, causing significant renal damage. Although poor lipid solubility characteristics limit CNS penetration, slow elimination and chronic exposure allow for significant CNS accumulation of mercuric ions and subsequent toxicity. Long-term dermal exposure to inorganic mercury may also lead to toxicity.

Excretion of inorganic mercury, as with organic mercury, is mostly through feces. Renal excretion of mercury is considered insufficient and attributes to its chronic exposure and accumulation within the brain, causing CNS effects.

Organic mercury can be found in 3 forms, aryl and short and long chain alkyl compounds. Organic mercurials are absorbed more completely from the GI tract than inorganic salts are; this is because of intrinsic properties, such as lipid solubility and mild corrosiveness (although much less corrosive than inorganic mercury). Once absorbed, the aryl and long chain alkyl compounds are converted to their inorganic forms and possess similar toxic properties to inorganic mercury. The short chain alkyl mercurials are readily absorbed in the GI tract (90-95%) and remain stable in their initial forms. Alkyl organic mercury has high lipid solubility and is distributed uniformly throughout the body, accumulating in the brain, kidney, liver, hair, and skin. Organic mercurials also cross the blood brain barrier and placenta and penetrate erythrocytes, attributing to neurological symptoms, teratogenic effects, and high blood to plasma ratio, respectively.

Methylmercury has a high affinity for sulfhydryl groups, which attributes to its effect on enzyme dysfunction. One enzyme that is inhibited is choline acetyl transferase, which is involved in the final step of acetylcholine production. This inhibition may lead to acetylcholine deficiency, contributing to the signs and symptoms of motor dysfunction.

Excretion of alkyl mercury occurs mostly in the form of feces (90%), secondary to significant enterohepatic circulation. The biological half-life of methylmercury is approximately 65 days. Organic mercury is found most commonly in antiseptics, fungicides, and industrial run-off.
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post #38 of 63
well, i think there just too much incorrect information floating in this thread so i would take the liberty to clear it. mercury or Hg is toxic by any measure. even more so in its pure form. when consumed or even touched far too many times it can cause severe health problems. it is about the same as Arsenic.

as i have mentioned earlier, mercury has a very low polarity which means it cannot be made to flow by magnets. you would need a very strong electro magnetic inductance to make it flow.

and copper is the BEST METAL heat conductor. Au (gold) is the best electricity conductor.

btw, there is basically no difference between naturally occuring Hg and commercial versions. except of course some very minor impurities. that is unless ur refering to HgO (mercury oxide) and Hg natural

hope this clears things up a bit.
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post #39 of 63
mj i belive that birth problems are a sideaffect as well so if you have anyone that is pregnant in the house you could be responsible for a baby with 12 arms or without eyes. or something horrible!


EDIT! what about oil? i mean it like seems good. it seems to like work with heat very well.
    
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post #40 of 63
Quote:
Originally Posted by uberjon
actualy truthfuly the best heat conductor (metal) wise is gold. yes gold.

so if you rly wanted to have something to absorb the heat away from cpu and stuff and could afford it. gold would be the best option!
super bling, huh? "i'm so l33t that my video cards heatsink is made of gold. what now?"
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