Charged nanoparticle?
stuff At 11:15 AM 12/23/2005, Marshall wrote:
My decision to ask the definition of ionic in the sci.chem newsgroup does not seem to have worked out as well as I had hoped. Initially there was confirmation that the silver oxide/hydroxide is ionic and that the silver crystals were particulate with a charge but not ionic. Then other scientists/chemists chimed in and said that the particulate could be called ionic, and even went as far as to say that if you rub a diamond on silk and charge it up, it could be called an ion! Also one indicated that radicals are ions, but not molecules, but another one said that radicals are molecules, that a molecule does not have to be neutral. How the heck can we agree on terms if the professional chemists and scientists cannot agree on the terms? After one of them suggested that we use the term "molecular ion" to describe the dissociated salts of anything, including silver another researcher chimed in last night and said that "molecular ion" is already used "in mass spectrometry for the molecule that has acquired a +1 charge and has not been fragmented. Also called parent peak." So I am still somewhat at a loss here as to what termnology to use to definitively seperate a molecular silver ion from a suspended silver crystal. I still like the "molecular ion", but maybe another good term would be a "disassociated ion". There is obvously a difference between the disassociated ion of what we call ionic silver, and the particulate portion of EIS.This is easily proven with both a laser as well as by adding salt and seeing that the former falls out and the latter does not. The difference is like the difference in salt water, and a diamond that has been charged up. The disassociated ion is very reactive, and the diamond is very stable. Any other ideas? Marshall -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
