Looking for detailed Titration method for the quantitative determination of Assay of Ammonium Bicarbonate. I am having one titration method, which includes the heating of solution before titration, but variation in the results is observed.
DearTushar Suryawanshi
Review the following info:
https://patents.google.com/patent/KR20150102130A/en
Hi Tushar Suryawanshi . See the following link: https://docksci.com/download/effective-identification-of-nh42co3-and-nh4hco3-concentrations-in-nahco3-regener_5a7a53a2d64ab2e2a8d781e1.html
Kindly see also the following link: https://www.sciencedirect.com/science/article/abs/pii/S0039914014007243
Also see the following link: Article Analysis and measurement of carbamate, carbonate and bicarbo...
Also see the following link:
Article Analysis and measurement of carbamate, carbonate and bicarbo...
See the following link: https://docksci.com/download/effective-identification-of-nh42co3-and-nh4hco3-concentrations-in-nahco3-regener_5a7a53a2d64ab2e2a8d781e1.html
You may want to consider back-titration ― Ammonium bicarbonate, (NH4)HCO3, aq. sol. can first acidified by a known excess of standardized HCl aq. sol. (quantitatively converted to ammonium chloride): NH4HCO3 + HCl → NH4Cl + CO2 + H2O. Excess HCl can be then back-titrated with standardized NaOH aq. sol., to find the stoichiometric amount of acid previously consumed by the conversion of ammonium bicarbonate to ammonium chloride. Excess NaOH aq. sol. should be avoided, as it would ultimately convert NH4Cl to NH4OH. Sparging N2 into the solution may help to liberate carbonic acid as CO2(g), hence avoiding any possible carbonation interference.
The pH of pure ammonium chloride (NH4Cl) aq. sol. is mildly acidic and can be predicted as I have shown at:
https://www.researchgate.net/post/What-exactly-does-adjusting-8mM-Ammonium-Chloride-to-solutions-of-pH-of-9-and-10-mean/1
The pH of (not too concentrate) ammonia / ammonium chloride (NH4OH / NH4Cl) aq. sol. can be predicted as I have shown elsewhere at this forum:
https://www.researchgate.net/post/Can-anyone-suggest-a-protocol-to-prepare-a-buffer-of-NH3-NH4Cl-with-pH-10
You may want to check also: https://www.researchgate.net/post/How_can_I_prepare_supersaturated_solution_of_ammonium_carbonate
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