Oystein
Penultimate Amazing
- Joined
- Dec 9, 2009
- Messages
- 18,903
...the thermitic materials allegedly found in the World Trade Center dust in 2008 is the strongest argument I have seen yet, and I hope we all have a chance to see this matter resolved.
I wish we could convince you that that paper is not a strong argument at all, but in fact contains most of what is needed to refute itself completely.
At any rate, here are some comments about things I found imprecise in your text:
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In 2008,
No. Published in (March, iirc) 2009.
...an allegedly peer-reviewed scientific article appeared in Bentham’s Open Chemical Physics Journal purporting to have found that about 0.1% of the WTC dust had nanothermite explosives in it. That’s tons of high-grade explosives.
A very careful reading of the paper will reveal that they do not conclude they found "explosives", nanothermitic or otherwise, in the dust. They only ever hint at it, but make it explicit that they have not tested whether, or what kind, of explosive the chips are.
The experiments included ... various chemical processes to isolate the chemical compounds in the dust
No. They only used physical methods/processes.
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The paper, "Nanostructured energetic materials using sol-gel methodologies", was publised in the Journal of Non-Crystalline Solids in May 2001. Harritt and Jones used the results of this paper to compare their findings with those of a known nanothermite. Tillotson discovered that nanothermites burn faster with an energy density nearly two times as great as thermites
Incorrect. On page 339 Tillotsom writes "The energy density of these composite systems can be nearly twice that of the best monomolecular energetic materials." He is not comparing nano-thermite to regular (non-nano) thermites here, but the entire class of thermites (including those made of other metal oxides than iron oxide) with monomolecular substances; many conventional explosives such as TNT are monomolecular.
The measured energy density is descrubed on page 343: "...a heat of reaction value of 1.5kJ/g. This is significantly lower than the theoretical value of 3.9 kJ/g. One potential explanation involves the aluminium fuel itself. ... the UFG aluminium used is actually 70% Al2O3 weight." (my italics).
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Reason # SLIDE OF NANOCHART 4: Harritt and Jones burned four samples of World Trade Center dust and carefully measured the energy output of each, plotting them on this graph with four different colored lines. The blue line shows the lowest energy output of the four, and the highest temperature for the heat energy to be released.
No, not the highest temperature from heat energy, but highest ignition point (that is externally applied temperature). The temperature reached in the reaction is never measured, and would not mean anything, really.
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SECOND SLIDE OF KNOWN NANOTHERMITE. Then they superimposed the blue line, the least energetic dust sample, to the known nanothermite sample from the Tillotson paper, claiming the energy reaction was close to a match. But it is not. The World Trade Center dust sample had to be heated 100 degrees Centigrade higher to generate the reaction, and then the reaction itself was stronger by a factor of two.
No no no
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The most likely conclusion is that Harrit's samples had some carbon-based material in them that simply burned in the surrounding air,
Yes, and this is a point the authors themselves make in the paper - but then they completely fail to follow this up by analysing that "carbon based" (organic) matrix. This alone should have been reason for any hypothetical peer reviewer to reject the paper.
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3.) Aluminum and iron oxide were found in the dust in Jones’s original study but not aluminum oxide (aluminum with three oxygen molecules attached to it, so it would have its own supply of oxygen). Aluminum oxide would be evidence of thermitic material since thermate is over one-third aluminum oxide.
No, you got yourself confused here. Elemental aluminium is the key ingredient of (unreacted) thermite. Aluminium oxide is an undesired but hard to avoid collateral. Only AFTER the reaction do you have Al-oxide.
The problem is that they did NOT show that elemental Al was found, although that convoluted part with the MEK-soaked sample supposedly did that. This MEK-soaked sample however was most likely a different material than the 4 other samples!
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9. All the ingredients in the dust were also in the towers: The “suspicious” sulfur found in the dust could have been evidence of thermitic material,
The four samples contained practically no sulphur. I think you should not discuss sulphur in the context of the Bentham paper. It's a different issue (and one that is actually contradicted by the Bentham paper).
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As Richard said, “sol gel uses 1,3 diphenylpropane,”
Have you checked whether this is even correct?
...Our paper gives a number of other reasons why the chips match with nanothermite (e.g. intimate nanoscale mixed aluminum and iron oxide, formation of metallic spheres which match the composition of thermitic spheres).”
No, they did not show any nanoscale aluminium. They only found crystals that contain Aluminium, plus silicium and oxygene - aluminium silicates! Tillotson on the other hand showed Aluminium microspheres in his nano-thermite. These are totally absent from Harrit's chips.
...So while the high energy released in the burning of the chips is used as evidence against nanothermites by other chemists I’ve talked with, Kevin Ryan sees it as evidence in favor of them!
Confirmation bias.
Kevin Ryan has also told me that “The red-gray chips tested do not withstand 650 C, do not have Zinc, and don't dissolve in an organic solvent (but known paint chips do). Other analyses, not yet published, also indicate that the red chips are not paint. I have WTC paint samples and can tell you that, in addition to these facts, the paint looks nothing like the red-gray chips.”
That is correct, because the red-grey chips are not WTC promer paint. They are a different kind of paint, as of yet unidentified.
The MEK-soaked chip was WTC primer paint. Looks and behaves like it.
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Kevin reminded me that their study claimed to find unignited thermitic material, saying, “aluminum oxide is a product, not a component, of the thermite reaction. If the red-gray chips contained aluminum oxide, instead of aluminum, they would not be thermitic materials. The source of oxygen as a reactant in the thermite reaction is not aluminum oxide as suggested here but iron oxide (typically). Thermate is not "41% aluminum oxide" or any percent aluminum oxide. The products of the thermite reaction are aluminum oxide and (typically) molten iron. This backwards claim is another reason for you to suspect that you are not dealing with real scientists.”
Tillotson finds that in his nano-thermite, the Al-spheres are 70% oxide by weight. Ryan shoulkd read the references of his own paper sometime.
I have to stop here, my girl friend is bugging me to go to the market today.
One thing you should include: Tillotson used a method called PXRD to identify the chemical make up of the reaction products. This is indeed the method of choice to identify chemical bounds and compounds. Harrit shoukd have used it both on the unreacted chips and the reaction products. He did not. That weas either a deliberate choice in order to obfuscate, or pure incompetence.
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