User talk:Renecassin

Your edit to Silicon dioxide
Dear Renecassin. I have reverted your addition of a link to Silicon dioxide. Such additions are regarded as spam links. Within the chemical part of the wikipedia we try to keep links to company pages to a minimum, links can be added to Chemical sources (that page should in time turn into a meta-page with search-capabilities). Kind regards, Dirk Beetstra T C 22:08, 3 August 2006 (UTC)