Thermite and Nano-Thermite Claims

Thermite and nano-thermite claims represent a subset of 9/11 controlled demolition theories, alleging that high-tech explosives rather than aircraft impact and fire caused the World Trade Center collapses.

The theory gained prominence following a 2009 paper published in The Open Chemical Physics Journal by Danish chemist Niels Harrit and eight co-authors, including physicist Steven E. Jones. The researchers claimed to have identified “active thermitic material” in dust samples collected near Ground Zero, arguing that red-gray chips in the dust exhibited properties consistent with nano-engineered thermite—a high-tech explosive allegedly used to sever structural elements during controlled demolition.

The paper described finding iron oxide, aluminum, and organic compounds in configurations the authors claimed could only result from manufactured thermite rather than natural building materials. They performed differential scanning calorimetry and other tests, concluding the chips represented “unreacted thermitic material” that had survived the collapse.

However, the findings faced immediate criticism from the materials science community. The National Institute of Standards and Technology noted that the identified compounds—iron oxide, aluminum, and carbon-based materials—were common components in office buildings, including paint, primer, and steel coatings. Independent researchers demonstrated that similar red-gray chips could be produced by heating ordinary building materials, particularly primer paint applied to steel beams.

Critics also noted methodological problems in the Harrit paper, including small sample sizes, failure to establish chain of custody for dust samples, and publication in a pay-to-publish journal rather than peer-reviewed materials science publications. The paper’s conclusions contradicted extensive forensic analysis by NIST and independent engineering organizations, which attributed the collapses to aircraft impact damage combined with fire-induced structural failure.

The thermite hypothesis requires assuming a massive controlled demolition operation involving thousands of pounds of explosives installed secretly in occupied buildings—a logistical implausibility that its proponents have never adequately addressed.