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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: Edward05 on August 09, 2005, 09:44:01 PM

Title: carbonates from nitrates
Post by: Edward05 on August 09, 2005, 09:44:01 PM

Need to make carbonates from nitrate salts of metals(Ca, K,Na).  Should I just bubble CO2 gas trough a sintered glass tube  below the surface of the solution? Will it turn into a "rock" and if so, how to prevent? By Constant swirling? Thanks!

Title: Re:carbonates from nitrates
Post by: Donaldson Tan on August 09, 2005, 10:04:13 PM

bubbling carbon dioxide will not convert the nitrate salts to carbonates.

introducing carbonate solution to aq. calcium nitrate will produce calcium carbonate.

however. potassium carbonate and sodium carbonate are water-soluble. they will not be precipitated in aqueous system.

Title: Re:carbonates from nitrates
Post by: Edward05 on August 12, 2005, 10:02:47 PM

do you have any suggestions for which carbonates I should use without contaminating the calcium solution? Thank you

Title: Re:carbonates from nitrates
Post by: Donaldson Tan on August 12, 2005, 11:27:13 PM

Quote from: Edward05 on August 12, 2005, 10:02:47 PM

do you have any suggestions for which carbonates I should use without contaminating the calcium solution? Thank you

what do you mean by "contaminating the calcium solution"? please clarify.