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the claim

Pencil lead contains carbon.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Pencil lead contains carbon?

Yes. Two reference works state directly that pencil lead is graphite, a form of carbon, and several peer-reviewed papers describe pencil lead electrodes as graphite/carbon-based.

Verdict: SUPPORTED · 7 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 7
2020
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Pinyou, P., Blay, V., Chansaenpak, K., & Lisnund, S. (2020). Paracetamol Sensing with a Pencil Lead Electrode Modified with Carbon Nanotubes and Polyvinylpyrrolidone. doi.org. https://doi.org/10.3390/chemosensors8040133

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More for · 6
2013
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Ozawa, H., Kuroiwa, K., Hasegawa, T., & Haga, M. (2013). pH-Dependent Electrochemical Behaviors of Ruthenium Complex/Carbon Nanotube Composites on Platinum and Pencil-lead Electrodes. doi.org. https://doi.org/10.1246/cl.130460

2023
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Chatree, K. & Schulte, A. (2023). Dip-coated carbon nanotube surface deposits as stable, effective response enhancers in pencil lead electrode voltammetry. doi.org. https://doi.org/10.1039/d3ra05688k

2011
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Y., P., B., E. B. L., & T., O. (2011). Pencil lead plasma for generating multimicrojoule high-order harmonics with a broad spectrum. inis.iaea.org. https://inis.iaea.org/records/kd4pq-d4w62

2026
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W, K., MA, C., NI, S., & Z, U. (2026). Low-cost graphite coatings from pencil strokes: a review of technological applications in flexible devices.. doi.org. https://doi.org/10.1039/d6ra04905b

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The Queer, the Quaint and the Quizzical: A Cabinet for the Curious. (n.d.). gutenberg.org. https://www.gutenberg.org/ebooks/41762

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The Library of Work and Play: Electricity and Its Everyday Uses. (n.d.). gutenberg.org. https://www.gutenberg.org/ebooks/45331

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