Pencil 1

Chemistry Level 1

What is the core of a pencil made up of?

Lead(Pb) Graphite Ink Platinum Coal Silver Iron Wood

Aryan Sanghi by Aryan Sanghi , 17, India

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4 solutions

Rico Lee
Dec 26, 2016

Apparently the story goes that children were chewing on lead so they replaced it with graphite.

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After (short) search, you seem right. In this document https://fr.wikipedia.org/wiki/Mine de plomb#Historique Egyptians, Greeks and Romans were using plumba (several plumbum), lead disks rolling along a rule.

I am not good in English and made no search in Shakespeare language, but the article mention the German 'Bleistift' and the English 'lead pencil'.

Nowadays, i do not know if they use the same material for "pens" (graphite pens with wood or plastic coating), and "pencils" (color ones).

Leonblum Iznotded - 2 years, 10 months ago
Mohammad Khaza
Jul 3, 2017

Here's a myth buster: There is no lead in pencils. Rather, the core is made up of a non-toxic mineral called graphite. The common name “pencil lead” is due to an historic association with the stylus made of lead in ancient Roman times.

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Interesting. It would be in that case, not the first time Wikipedia transmit a false information :

https://fr.wikipedia.org/wiki/Mine de plomb#Historique argues that Egyptians, Greeks and Romans were using plumba (several plumbum), lead disks rolling along a rule.

I am ready to hear (read) any further information, and encourage you to correct articles in different languages if you have historical proof or clue.

Nowadays, i do not know if is used the same material for "pens" (graphite pens with wood or plastic coating), and "pencils" (color ones).

Leonblum Iznotded - 2 years, 10 months ago

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i will be very happy to correct myself from wrong information. i got that information from wiki.

Mohammad Khaza - 2 years, 10 months ago

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I have no historian documents. If we are neutral, we shall check which among wikipedia and wiki published the false information. Before that question i believed that "graphite" was a kind of coal - i made a search and saw they were not the same - tey are "differents allotropes naturels du carbone". What is "true" today according to the (elec) document we have may be false tomorrow, and we cannot prove it was false yesterday, because we have no archive of former knowledge.

Leonblum Iznotded - 2 years, 10 months ago
Yajat Shamji
Jun 29, 2020

The core of a pencil is made up of graphite.

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Annie Li
Mar 20, 2017

Just search it up on Google

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But we should try to do it ourselves, shouldn't we?

Aryan Sanghi - 4 years, 2 months ago

yeah true but why do many people think that the lead is metal? weird.

Annie Li - 4 years, 2 months ago

Pencil lead is different from lead(Pb). Pencil lead is a non-metal (graphite) whereas lead(Pb) is a metal.

Aryan Sanghi - 4 years, 2 months ago

Sorry but it makes no sense to me. I have never done chemistry.

Annie Li - 4 years, 2 months ago

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Here's a myth buster: There is no lead in pencils. Rather, the core is made up of a non-toxic mineral called graphite. The common name “pencil lead” is due to an historic association with the stylus made of lead in ancient Roman times.

Mohammad Khaza - 3 years, 11 months ago

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