Paper published in Peer reviewed Journal-Active thermite found at WTC!

[jimd3100]

From 9/11 blogger.......

From Dr. Steven Jones;

Formally published in a peer-reviewed Chemical Physics journal, today:

“Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe” by Niels H. Harrit, Jeffrey Farrer, Steven E. Jones, Kevin R. Ryan, Frank M. Legge, Daniel Farnsworth, Gregg Roberts, James R. Gourley and Bradley R. Larsen

The paper ends with this sentence: “Based on these observations, we conclude that the red layer of the red/gray chips we have discovered in the WTC dust is active, unreacted thermitic material, incorporating nanotechnology, and is a highly energetic pyrotechnic or explosive material.”

In short, the paper explodes the official story that “no evidence” exists for explosive/pyrotechnic materials in the WTC buildings.

What is high-tech explosive/pyrotechnic material in large quantities doing in the WTC dust? Who made tons of this stuff and why? Why have government investigators refused to look for explosive residues in the WTC aftermath?

These are central questions raised by this scientific study.

The peer-review on this paper was grueling, with pages of comments by referees. The tough questions the reviewers raised led to months of further experiments. These studies added much to the paper, including observation and photographs of iron-aluminum rich spheres produced as the material is ignited in a Differential Scanning Calorimeter (see Figures 20, 25 and 26).

The nine authors undertook an in-depth study of unusual red-gray chips found in the dust generated during the destruction of the World Trade Center on 9/11/2001. The article states: “The iron oxide and aluminum are intimately mixed in the red material. When ignited in a DSC device the chips exhibit large but narrow exotherms occurring at approximately 430 ˚C, far below the normal ignition temperature for conventional thermite. Numerous iron-rich spheres are clearly observed in the residue following the ignition of these peculiar red/gray chips. The red portion of these chips is found to be an unreacted thermitic material and highly energetic.” The images and data plots deserve careful attention.

Some observations about the production of this paper:

1. First author is Professor Niels Harrit of Copenhagen University in Denmark, an Associate Professor of Chemistry. He is an expert in nano-chemistry; current research activities and his photo can be found here:
http://cmm.nbi.ku.dk/
Molecular Structures on Short and Ultra Short Timescales
A Centre under the Danish National Research Foundation

The Centre for Molecular Movies was inaugurated 29th November 2005, at the Niels Bohr Institute, University of Copenhagen. The Centre is made possible through a five year grant from the Danish National Research Foundation (see e.g. www.dg.dk). We aim to obtain real time “pictures” of how atoms are moving while processes are taking place in molecules and solid materials, using ultrashort pulses of laser light and X-rays. The goal is to understand and in turn influence, at the atomic level, the structural transformations associated with such processes.

The Centre combines expertise form Risø National Laboratory, University of Copenhagen, and the Technical University of Denmark in structural investigation of matter by synchrotron X-ray based techniques, femtosecond laser spectroscopy, theoretical insight in femtosecond processes, and the ability to tailor materials, and design sample systems for optimal experimental conditions.”

We understand that the Dean of Prof. Harrit’s college, Niels O Andersen, appears as the first name on the Editorial Advisory Board of the Bentham Science journal where the paper was published.

2. Second author is Dr. Jeffrey Farrer of BYU. http://www.physics.byu.edu/images/people/farrer.jpg

3. Dr. Farrer is featured in an article on page 11 of the BYU Frontiers magazine, Spring 2005: “Dr. Jeffrey Farrer, lab director for TEM” (TEM stands for Transmission Electron Microscopy). The article notes: “The electron microscopes in the TEM lab combine to give BYU capabilities that are virtually unique… rivaling anything built worldwide.” The article is entitled: “Rare and Powerful Microscopes Unlock Nano Secrets,” which is certainly true as regards the discoveries of the present paper.

4. Kudos to BYU for permitting Drs. Farrer and Jones and physics student Daniel Farnsworth to do the research described in the paper and for conducting internal reviews of the paper. Dr. Farrer was formerly first author on this paper. But after internal review of the paper, BYU administrators evidently disallowed him from being first author on ANY paper related to 9/11 research (this appears to be their perogative, but perhaps they will explain). Nevertheless, the paper was approved for publication with Dr. Farrer’s name and affiliation listed and we congratulate BYU for this. We stand by Dr. Farrer and congratulate his careful scientific research represented in this paper.

5. Perhaps now there will finally be a review of the SCIENCE explored by Profs. Harrit and Jones and by Drs. Farrer and Legge and their colleagues, as repeatedly requested by these scientists. We challenge ANY university or established laboratory group to perform such a review. This paper will be a good place to start, along with two other peer-reviewed papers in established journals involving several of the same authors:

Fourteen Points of Agreement with Official Government Reports on the World Trade Center Destruction

Authors: Steven E. Jones, Frank M. Legge, Kevin R. Ryan, Anthony F. Szamboti, James R. Gourley
The Open Civil Engineering Journal, pp.35-40, Vol 2
http://www.bentham-open.org/pages/content.php?TOCIEJ/2008/00000002/00000...

Environmental anomalies at the World Trade Center: evidence for energetic materials
Authors: Kevin R. Ryan, James R. Gourley, and Steven E. Jones
The Environmentalist, August, 2008
http://dx.doi.org/10.1007/s10669-008-9182-4

6. James Hoffman has written three essays further explaining the implications and results of the paper. Thank you, Jim, for this work! http://911research.wtc7.net/essays/thermite/index.html

7. Important features of the research have been independently corroborated by Mark Basile in New Hampshire and by physicist Frederic Henry-Courannier in France., proceeding from earlier scientific reports on these discoveries (e.g., by Prof. Jones speaking at a Physics Dept. Colloquium at Utah Valley University last year.) We understand that details will soon be forthcoming from these independent researchers.

Now read the paper for yourself, and let your voice regarding these discoveries be heard!
http://www.bentham.org/open/tocpj/openaccess2.htm then click on “Active Thermitic Materials Discovered…”
http://www.911blogger.com/node/19761


The paper itself can be found here....
http://www.bentham.org/open/tocpj/openaccess2.htm

The title is...Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe

Abstract:  
We have discovered distinctive red/gray chips in all the samples we have studied of the dust produced by the destruction of the World Trade Center. Examination of four of these samples, collected from separate sites, is reported in this paper. These red/gray chips show marked similarities in all four samples. One sample was collected by a Manhattan resident about ten minutes after the collapse of the second WTC Tower, two the next day, and a fourth about a week later. The properties of these chips were analyzed using optical microscopy, scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (XEDS), and differential scanning calorimetry (DSC). The red material contains..
 

Jim Hoffman has written 3 new essays on this which can be found here....

1.Explosives Found in World Trade Center Dust:
Scientists Discover Both Residues And Unignited Fragments Of High-Tech Metal Incendiaries In Debris From the Twin Towers
http://911research.wtc7.net/essays/thermite/explosive_residues.html

2.Wake Up and Smell the Aluminothermic Nanocomposite Explosives:
As Documentation of Thermitic Materials in the WTC Twin Towers Grows, Official Story Backers Ignore, Deny, Evade, and Dissemble
http://911research.wtc7.net/essays/thermite/explosives_evidence_timeline.html


3.A Hypothetical Blasting Scenario:
A Plausible Theory Explaining the Controlled Demolition of the Twin Towers Using Aluminothermic Incindiaries and Explosives with Wireless Detonation Means
http://911research.wtc7.net/essays/thermite/blasting_scenario.html

[pac522]

Thanks Jim.

[jimd3100]

Hoffman shares with us some interesting emails his colleague Prof Jones has gotten over the years. Including the possibility of Homeland Security providing funding for him if he went a different route with his research....

http://911research.wtc7.net/essays/thermite/StevenJonesUrged.html

[jimd3100]

Many people depend on infowars and prisonplanet for the latest news on anything related to 9/11. Infowars has a specific section on it's page devoted to 9/11 news. And what is the latest? It's an article from March 26 about the new name for the tower being built at the WTC.

In other words. You would never know that a new documentary and possibly the best one yet has been released (core of corruption)and a premiere of the movie and conference were held today April 5. You'd never know that a scientific peer reviewed paper has appeared in a science journal that appears to prove super thermite is in the WTC dust.

Is there a reason I should not be disappointed in this?

[grapecrusher1]

Is there a reason I should not be disappointed in this?

I'm equally dismayed.  Oh well not a big deal, not like it was a life changing event for everyone on the planet or anything.
I recently listened to the hero (I dont use this word lightly) Kevin Ryan talking with Wolsey on visibility 911.  He has a spine like few others and I am concerned about his martyrdom -- he is gutsy.

[grapecrusher1]

 You'd never know that a scientific peer reviewed paper has appeared in a science journal that appears to prove super thermite is in the WTC dust.

It is a peer reviewed paper that PROVES the presence of unexploded thermite in the WTC dust samples.  Unless the 9 highly qualified scientists collaborated in some sort of "conspiracy" to upset the official story for reasons undisclosed, this is a loaded gun.  I understand there are other labs doing independant tests, too.
This news is HUGE.

[jimd3100]

This news is HUGE.

Evidently infowars seems to think it's not as huge as a 2 week old story about the name of the new tower being built at ground zero. I find that to be a bit odd. This is the 9/11 section so I'm going to tell it like it is. I have no idea whats going on, but it's evident that for the best up to date news and info on 9/11 I'd suggest www.911blogger.com then this board, then prisonplanet and infowars, in that order.

That's not really surprising and to be expected really. 911blogger covers 9/11 only and is on top of things, Reprehenser does a great job running the site, it's the place to go for 9/11 info. AJs websites and show cover many many more topics. But not a peep? I don't get it.

[jimd3100]

It is a peer reviewed paper that PROVES the presence of unexploded thermite in the WTC dust samples.  Unless the 9 highly qualified scientists collaborated in some sort of "conspiracy" to upset the official story for reasons undisclosed, this is a loaded gun.  I understand there are other labs doing independant tests, too.

There are other dust samples from the WTC. Duetch Bank hired a firm that found some of the same iron spheres Prof Jones found but has made no mention of these chips. These chips were in all 4 samples that the paper was based on, which indicates that the other samples including the Governments own samples from the USGS study would contain these chips as well. From one study....

"As a result of this investigation, it was determined that WTC Dust contains various solid phases that include asbestos and minerals, metals and mercury,organic pollutants and particles of various sizes and different morphological characteristics. The distinctive composition, solid phases, and unique morphological features have allowed for the development of a “WTC Dust Signature”: dust containing particles that, when occurring together, can be considered to act as identifying source tracers."
http://www.nyenvirolaw.org/WTC/130%20Liberty%20Street/Mike%20Davis%20LMD...

That was from the RJ Lee Group. Prof Jones stated on Michael Woosley visibility 9/11 radio show that he asked these people if they found these chips as well. They are a commercial company and therefor wanted paid to reveal information derived from their work. He agreed but then communications broke down.

But the USGS is a Government agency. According to Prof Jones they wont give an answer to the question, were these chips in their samples as well? We have a right to know this. It looks like these are the people that should answer it. Are these samples still available? Can lawyers for truth help make sure any samples in Gov possesion do not get destroyed but made to answer the question- are these chips in your sample? Why have they not been mentioned if they are? And what is their explanation? If they claim they were never in any of their samples then why are they in everyone elses?

USGS___
For more information, contact:
Dr. Gregg A. Swayze
U.S. Geological Survey
303-236-0925
gswayze@usgs.gov
or
Todd Hoefen
U.S. Geological Survey
303-236-2456
thoefen@usgs.gov
or

Dr. Roger N. Clark
U.S. Geological Survey
303-236-1332
rclark@usgs.gov
http://pubs.usgs.gov/of/2001/ofr-01-0429/spectra.samples/wtc01.all.html

http://pubs.usgs.gov/of/2001/ofr-01-0429/sample.location.html

Also, isn't this an idication that if the Gov ever does answer wether they have these chips in their samples, the answer will be no....so we need to find out if these samples are still available and make sure they are not destroyed....

"Conclusions
Six bulk WTC dust samples, collected from locations in different directions, elevations, and from outdoor and indoor environments show relatively consistent abundance ratios of major and minor components. For the purposes of identification of WTC dust, these abundance ratios appear to be within the necessary limits of variability. Furthermore, the critical dust components can be identified easily and quickly using routine SEM and x-ray microanalysis techniques."

"Data presented here suggest that the presence and relative abundance of the three MMVF components – slag wool, rock wool, and soda-lime glass – along with the presence of concrete particles and gypsum could be used as a primary diagnostic signature for WTC dust. Secondary signature components could include FeOx, ZnOx, silica, and chrysotile."
http://www.epa.gov/WTC/panel/pdfs/meeker-20041115.pdf

"Secondary signature components could include FeOx, ZnOx, silicia, and chrysotile"...could it also include nano thermetic particles? They need to officially say wether these particles exist in their samples.

[grapecrusher1]

Also, isn't this an idication that if the Gov ever does answer wether they have these chips in their samples, the answer will be no....so we need to find out if these samples are still available and make sure they are not destroyed....

"Conclusions
Six bulk WTC dust samples, collected from locations in different directions, elevations, and from outdoor and indoor environments show relatively consistent abundance ratios of major and minor components. For the purposes of identification of WTC dust, these abundance ratios appear to be within the necessary limits of variability. Furthermore, the critical dust components can be identified easily and quickly using routine SEM and x-ray microanalysis techniques."

"Data presented here suggest that the presence and relative abundance of the three MMVF components – slag wool, rock wool, and soda-lime glass – along with the presence of concrete particles and gypsum could be used as a primary diagnostic signature for WTC dust. Secondary signature components could include FeOx, ZnOx, silica, and chrysotile."
http://www.epa.gov/WTC/panel/pdfs/meeker-20041115.pdf

"Secondary signature components could include FeOx, ZnOx, silicia, and chrysotile"...could it also include nano thermetic particles? They need to officially say wether these particles exist in their samples.

I read the EPA document which had as a first author a geologist, Meeker.  With a name like that I doubt he would have the balls to mention anything revelatory.  I also question the choice of a geologist as the best choice for lead investigator.  The Gov paper is much more superficial in comparison to the one by Jones and co. it mentions a shard of glass and some insulation being found (wow).  It does appear to use techniques that would unearth these chips but because of the lightweight investigation it resulted in the typical whitewash we would expect.  They must have these samples stored somewhere, 6 in all.  Getting them to offer them up (unmagnetized) would be the trick.  I wouldnt wager on them sharing but it is worth a shot.  Good thinking though --- it would comply with Ryan's strict origin and handling protocol.

Kevin Ryan talks on  Indy Media on the Air Apr. 6  ---KPFK 90.7 fm
easily found on KPFK's new website

[grapecrusher1]

Has been mentioned on Infowars, finally.  Still dont get why more people arent realizing the significance of this-- it is a milestone.  You know that skeptic who is a scientist, tell him/her to checkout this paper.

[jimd3100]

The Government has WTC dust samples. So does RJ Lee Group who were hired by Deutsch Bank to do an analysis. Steven Jones has talked about the Iron Spheres found in the dust along with this nano thermetic material.

The analysis of the RJ Lee group confirmed what Jones has said about the iron spheres. This is from their report.....

Various metals (most notably iron and lead) were melted during the WTC Event, producing spherical metallic particles. Exposure of phases to high
heat results in the formation of spherical particles due to surface tension.
Figure 21 and Figure 22 show a spherical iron particle resulting from the
melting of iron (or steel).  Page 21/34
http://www.nyenvirolaw.org/WTC/130%20Liberty%20Street/Mike%20Davis%20LMDC%20130%20Liberty%20Documents/Signature%20of%20WTC%20dust/WTC%20Dust%20Signature.Composition%20and%20Morphology.Final.pdf

Can someone correct me? Isn't this in of itself proof of some kind of demolition since the melting point of Iron is 1538 °C, 2800 °F
http://chemistry.wikia.com/wiki/Iron

NIST claims there was no melted steel. Does anyone know if NIST analyzed WTC dust samples?

The Government is not going to admit that there is nano thermetic material in the dust. This will never ever happen. So far they have just been ignoring this. We need to locate the samples the Gov has. We need to make sure they haven't been "lost" or "accidentally" destroyed. We also need to know who exactly has samples. So far we know that the USGS has samples. RJ Lee group has samples. Does anyone else(especially government agencies)have samples?
Prof Jones asked RJ Lee if they found this material in their samples and didn't really get an answer. He also asked the USGS people about it and they wouldn't answer. You can hear him talk of this in his interview with Michael Wosley at visibility 9/11 and the other interviews with Kevin Ryan and Danish chemist Dr. Niels H. Harrit, here...
http://visibility911.com/reports-thermite01.php

[jimd3100]

Here is smoking gun proof that the NIST investigations into the collapse of the towers were not an investigation at all but were created for the same reason the 9/11 commission was created. To "tell a story". Just a couple of weeks after 9/11 the U.S. Government sent out a document instructing their embassy officials what to tell their host countries and in the document is an explanation of the towers collapse.


Shortly after 9/11, U.S. embassies around the world were instructed to deliver a top-secret briefing to world leaders on the attacks of September 11.
Embassies were instructed on Oct. 2, 2001, to deliver "oral briefings only and not [repeat] not leave the document" in hard copy form.

Here is the document....
http://intelfiles.egoplex.com/2001-10-02-DOS-Qaeda-Overview.pdf

And in the document is this....


"THE 767 AIRCRAFT THAT STRUCK THE WORLD TRADE CENTER
CAUSED MASSIVE LOSS OF LIFE IN ADDITION TO KILLING THE 148
PASSENGERS AND CREW ON BOARD. THOUSANDS WERE KILLED
IMMEDIATELY AND THOUSANDS MORE WERE TRAPPED BY FIRE AND
SMOKE ON THE TOWER'S UPPER FLOORS. WITHIN 90 MINUTES BOTH
TOWERS--STRUCTURALLY WEAKENED BY THE INTENSE HEAT OF THE
FLAMES--COLLAPSED, KILLING THOUSANDS MORE INCLUDING
SEVERAL HUNDRED POLICE AND FIRE FIGHTERS WHO HAD RUSHED
INTO THE BURNING BUILDINGS ON A COURAGEOUS RESCUE MISSION."
http://intelfiles.egoplex.com/2001-10-02-DOS-Qaeda-Overview.pdf

[William Rausch]

I've just finished reading the paper.

GREAT JOB!!!  FINE SCIENCE!!!

Just one observation:

It would be interesting to know the source of the most spectacular property of the WTC iron sphericules, to wit: the sulfurous inclusions which allowed the hypothesis of Thermate (r) as one energetic substance present in the WTC buildings during their collapses.  It may be, as the paper postulates, that the red material in the chips was merely a "match" for primary charges taking some other form, or, if, as is counterposited (or additionally posited), that the red material on the chips was unignited residue from an originally thicker layer of thermitic material (resulting from the postulated "quenching" effect of the iron on the outer layer of grey material acting as a thermal sink), with the sulphurous matter being present in inconsistent proportions throughout the thermitic mixture (S having been found in sample 3 (Intermont, 16 Hudson St).  Or perhaps a Thermate (r) reaction has a higher affinity for S than the other reactive elements.

Boy, do I wish I had access to an energetic materials lab!

If anybody out there is luckier than me in that respect, I'd suggest it's time to get to work!

[William Rausch]

(Sorry for the tedium, but reading that paper ignited an all-night brainstorm inside my little cranium!)

One more question:


If the iron oxide present in the outer grey layer of the chips served as an effective thermal sink relative to the intensely exothermic reactions taking place within the thermitic materials which that layer encased, might not the original intent of its application have been that it serve as a layer of insulation versus thermal shocks from without until the desired moment of ignition?

[gunDriller]

Hoffman shares with us some interesting emails his colleague Prof Jones has gotten over the years. Including the possibility of Homeland Security providing funding for him if he went a different route with his research....

http://911research.wtc7.net/essays/thermite/StevenJonesUrged.html

I've met Jim Hoffman & spent a weekend listening to him.

I have a technical background also & probably a little more engineering experience than Jim.  As far as I can tell, he is the Real Deal - I admire him very much.

For other people who want to investigate 9-11, I suggest going to one of Jim's presentations if he comes to your area.

[jimd3100]

Anybody following this latest development?

Editor in chief of Open Chemical Physics Journal resigns after controversial article on 9/11

http://911blogger.com/node/19963

No mention of this during interview with Niels Harrit on today's AJ show.

Yes, and check out her resume...rather interesting things in there...
http://www.sri.jussieu.fr/cv-pileni.htm

She doesn't claim anything in the paper is in error. She claims it didn't have to do with Chemical Physics and shouldn't have been published because of that. She claims she wasn't aware of it's publication until it was already done. In other words......she wished she could have blocked it being published, but didn't get the chance. Why? The real reason is most likely political/philosophical.

[pcc]

interesting discussion here about wikipedia changing titles and removing links to Jones paper on 911blogger.com

Activist editors at Wikipedia have changed the name of the "World Trade Center Controlled Demolition Hypothesis" page to "World Trade Center Demolition Conspiracy Theories", are removing all links to the paper "Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe" recently published in the refereed Open Chemical Physics Journal (including from the 9/11 Truth Movement page and even Dr. Steven Jones' page), and have banned and/or restricted some users that re-add the links and question their policy.

See the discussion thread at TruthAction.org- many links to relevant pages at Wikipedia; the "Talk" page is very revealing of their bias, hypocrisy and intellectual dishonesty:

Wikipedia editors livid over new paper
http://truthaction.org/forum/viewtopic.php?t=5195&postdays=0&postorder=a...

The new paper has pulled the rug out from under the wikipedia front lines defending the official story and they have now suddenly changed the title of the demolition page from --

Controlled demolition hypothesis for the collapse of the World Trade Center

to --

World Trade Center controlled demolition conspiracy theories

Here is their discussion. They are clearly on the defensive. They removed the link to the paper, claiming it is an "unreliable source". It's been reposted and removed again. Consider joining in . . .

http://911blogger.com/node/19833

[agentbluescreen]

I've just finished reading the paper.

GREAT JOB!!!  FINE SCIENCE!!!

Just one observation:

It would be interesting to know the source of the most spectacular property of the WTC iron sphericules, to wit: the sulfurous inclusions which allowed the hypothesis of Thermate (r) as one energetic substance present in the WTC buildings during their collapses.  It may be, as the paper postulates, that the red material in the chips was merely a "match" for primary charges taking some other form, or, if, as is counterposited (or additionally posited), that the red material on the chips was unignited residue from an originally thicker layer of thermitic material (resulting from the postulated "quenching" effect of the iron on the outer layer of grey material acting as a thermal sink), with the sulphurous matter being present in inconsistent proportions throughout the thermitic mixture (S having been found in sample 3 (Intermont, 16 Hudson St).  Or perhaps a Thermate (r) reaction has a higher affinity for S than the other reactive elements.

Boy, do I wish I had access to an energetic materials lab!

If anybody out there is luckier than me in that respect, I'd suggest it's time to get to work!

http://forum.prisonplanet.com/index.php?topic=98720.msg618014#msg618014

To understand the demolition study as clearly and in as few words possible read the post above it just adds the nano-thermate paint to the earlier evidence which NOW ALSO explains why some outer-corner columns of the Tower cores weren't fully and properly pre-cut and why "paint-chips" from nano-thermate paint-incendiaries sloshed onto the interior cement (especially on the inner cores outsides) of the core structure would have failed to be trigger-ignited for the melt phase of the demolition and have ended up un-detonated, in the dust and rubble afterwards.

Melting inner-core steel alone would never have worked to collapse these structures! In fact if they waited for a certain incendiary temperature to be achieved to trigger any sort of a specialized added secondary explosive in the same, single high-tech cutter-charges it would have to be far too high to prevent premature detonations from happening too soon.

The 20 much-later floor-disconnect 'section slide-off' bombs were clearly RDX or HTX - they went off like percussion cannons which are clearly and distinctly audible in a 7 second timed sequence. Boom Boom Boom all the way down.

) BUT ONLY ONE PUNCH_PRESS KLANG (

http://forum.prisonplanet.com/index.php?topic=98720.msg618014#msg618014

[jimd3100]

Steven Jones points out in his lectures that others have found evidence of extremely high tempetarues in the WTC dust as well. He mentions the RJ Lee group who were hired by lawyers for Deutsche Bank to do tests on the Dust for environmental/cleanup reasons. They aren't "truthers". What do they say?.....


"Various metals (most notably iron and lead) were melted during the WTC Event, producing spherical metallic particles. Exposure of phases to high heat results in the formation of spherical particles due to surface tension. Figure 21 and Figure 22 show a spherical iron particle resulting from the melting of iron (or steel)."
page 21/34

"In addition to the spherical iron and aluminosilicate particles, a variety of
heavy metal particles including lead, cadmium, vanadium, yttrium, arsenic, bismuth, and barium particles were produced by the pulverizing, melting
and/or combustion of the host materials such as solder, computer screens,
and paint during the WTC Event.
Combustion-related products are significant WTC Dust Markers, particularly
if seen in combination. However, it is worth noting that fly ash and partially
combusted products can occur in trace concentrations in ordinary building
dusts, but not in the concentrations observed in WTC Dust." page 23/34

"Many of the materials, such as lead, cadmium, mercury and various organic compounds, vaporized and then condensed during the WTC Event." page 25/34

"The presence of lead oxides on the surface of mineral wool indicates the exposure of high temperatures at which lead would have undergone vaporization, oxidation, and condensation on the surface of mineral wool." page 25/34
http://www.nyenvirolaw.org/WTC/130%20Liberty%20Street/Mike%20Davis%20LMDC%20130%20Liberty%20Documents/Signature%20of%20WTC%20dust/WTC%20Dust%20Signature.Composition%20and%20Morphology.Final.pdf

For lead to be vaporized the temperatures would have been over 1750 Celsius
http://www.engineeringtoolbox.com/melting-boiling-temperatures-d_392.html

1750 Celsius =3182 Fahrenheit
http://www.mathsisfun.com/temperature-conversion.html#tool

What's the hottest that NIST says the fires got?
 
NIST reported maximum upper layer air temperatures of about 1,000 degrees Celsius (1,800 degrees Fahrenheit) in the WTC towers
http://wtc.nist.gov/pubs/factsheets/faqs_8_2006.htm

Doesn't quite add up does it?