Conversations about Cquestrate

Posted on August 6th, 2008 by Chris Unitt in General

Cquestrate launched just over two weeks ago and we’ve already seen a great level of discussion on the website.  Some of the comments and contributions have started to move the project forward in encouraging ways.

However, discussions about Cquestrate aren’t restricted to this website and it has been fascinating to read, and contribute to, what has been going on elsewhere.  Here’s a very small sample:

When I come across anything useful I use del.ici.ous to ‘tag’ the page.  Links to these tagged pages are collected automatically on our links page for all to see.

Unfortunately, it can be tricky to find all of these conversations.  However, it’s important we do our best to follow them  – we don’t want to miss out on some potentially valuable information.

If you are part of a community that has discussed Cquestrate or if you’ve blogged about the project, please let us know in the comments below.

 

2 people have left a comment

Tom says: November 20th, 2008

CO2 in water solution exists as a carbonic acid radical H(HCO3). Adding CaO doesn’t make any difference to this – the Ca++ simply displaces the hydrogen radicals when it forms calcium bicarbonate. On its own, this would increase the pH value – except that when the CO2 released by burning the limestone reaches the water and reacts to form carbonic acid, the effect will be cancelled out.
Moreover, calcium bicarbonate only exists in solution. If you attempt to precipitate or crystalize it, one CO2 is shed and it turns back into calcium carbonate.
See among others: http://www.nationmaster.com/encyclopedia/Calcium-bicarbonate

Alberto says: August 3rd, 2009

Sorry Tom, but as Calcium Bicarbonate and Calcium Carbonate have very different solubility values, as soon as there is some Ca++ in a Carbonic acid solution this will precipitate CaCO3 crystal.
Discussing of Calcium bicarbonate is like “what if” questions… interesting, but useless because not existing.

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