Digital BW, The Print

Duane,

I think you are trying to simplify the subject too much.

Carbon doesn't exist in fixed sizes of molecules, except as fullerenes 
(which are finite-sized molecules of C60, C70, etc). The usual forms of 
carbon such as diamond and graphite, are crystalline structures of 
indefinite size. So the diamond in a ring could be called a molecule!

I think people are getting too hung-up on the term 'carbon-based'. All life 
on this earth is carbon-based; the whole subject of organic chemistry is 
mainly the study of carbon-based compounds.

AFAIK, most dyes and pigments are carbon-based compounds, whether natural or 
synthetic. The difference is simply one of solubility - 'dyes' are soluble 
and 'pigments' are insoluble.

http://pffc-online.com/mag/paper_brief_chemistry_lesson/

Bob Frost.



----- Original Message ----- 
From: "dlruckus" <dlruckus@...>




Can't make a dye of anything larger than a molecule of carbon. Get 2
of them and it becomes a clump and -that-- is a pigment.