TomHill wrote:1. The aromas I was getting off these pencil leads doesn't remotely smell like anything I've ever smelled in a wine, let alone Syrah or a Rhone wine. It smelled kinda like...crayons (the red-brown color). Realizing that pencil leads are not pure graphite, what did I do wrong? Sholda used the 3H hardness level? Everyone knows that the Pentel brand doesn't smell of graphite, but the EverSharp brand does? Shoulda used the 0.5 mm ones? The plastic container of the leads contaminated the graphite smell from the plasticizer?
Mark Lipton wrote:On a related note: given the fact that graphite is a high MW allotrope of carbon, I question whether in pure form it should have any volatility whatsoever. Those olfaction receptors in our noses are wondrous things to be sure, but the molecule in question still has to reach them in the gas phase, no?
Neil Courtney wrote:According to this page, the HB pencil contains 68% graphite, 26% clay and 5% wax. I didn't know that. So I wonder how much the clay changes the smell?
Mark Lipton wrote:I had this very discussion a while ago...
Ian Sutton wrote: A superfine 3H, now you're talking!
Sue Courtney wrote:I remember Graphite - soft, slippery and gets all over your hands.