Isn't CaCO3 useful as a primary standard for determination of calcium by EDTA titration?
Among other things, yes. Highly pure, so-called precipitated CaCO3 is used for it. Highly pure metals (dissolved in acid) like Al, Zn or Pb have also
been used as standards.
Another analytical uses (at least at the time) is the extraction of alkali metals from minerals like Lepidolite.DalisAndy - 15-5-2015 at 18:05
Yep that was my aim with it. Cause it's the sulfate anion more reactive that carbonate anion?blogfast25 - 16-5-2015 at 06:10
Yep that was my aim with it. Cause it's the sulfate anion more reactive that carbonate anion?
WHAT was your aim?
The second sentence makes no sense whatsoever. 'Reactivity' is a very relative term and depends entirely on chemical CONTEXT.Dan Vizine - 20-5-2015 at 12:30
The second sentence makes no sense whatsoever. 'Reactivity' is a very relative term and depends entirely on chemical CONTEXT.
Ahhh...I missed that. Good to be back.
But, seriously, why devote any time to this, because you can buy it so cheaply? There are lots of better things to recrystallize than CaCO3. blogfast25 - 20-5-2015 at 12:35
