what are the components of lead pencil refills?

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what are the components of lead pencil refills?

2006-11-16 05:19:10 · 3 answers · asked by Robin D 1 in Science & Mathematics ➔ Chemistry

3 answers

Graphite and clay. The ratio of clay to graphite allows control of the hardness of the lead - more clay makes a harder lead.

2006-11-16 05:36:17 · answer #1 · answered by WildOtter 5 · 0⤊ 0⤋

Lead in pencils is carbon now. Not lead. If you look at the carbon bonds in it it's C2 while coal is C3 and Diamonds are C4 (hence the stregnth of the substance)

2006-11-16 13:27:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋

It's just graphite.

2006-11-16 13:27:01 · answer #3 · answered by Kacky 7 · 0⤊ 1⤋