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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1995053Generated: October 30, 2026

Nitric Acid → Carbon Dioxide

https://huagongshe.com/reaction/1995053

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantCalcium CarbonateHCID 10112—
ReactantAmmonium BicarbonateHCID 14013—
Reactant4-(N,N-Dimethyl-n-tetradecylammonium)methyl-(7-hydroxycoumarin) chlorideHCID 23989—
ReactantCalcium HydroxideHCID 6093208—
SolventWaterHCID 962—
ProductCarbon DioxideHCID 280—
ProductAmmonium nitrateHCID 22985—
ProductCalcium nitrateHCID 24963—

Reaction Steps

The resultant water solution containing trace quantities of uranium among other possible components, with a basic pH higher than about 8, is then acidified to the extent of lowering the pH to less than about 6, and preferably to within a range of about 5 to about 4, by the addition thereto of a mineral acid such as nitric acid. This acidification decomposes any of the water-contained ammonium bicarbonate (NH4HCO3), calcium hydroxide and calcium carbonate (CaCO3) to form carbon dioxide, calcium nitrate (Ca(NO3)2) and ammonium nitrate (NH4NO3), in addition to converting uranium compounds present to uranyl nitrate (UO2 (NO3)2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04402918
Source datasetuspto-grants-1983_09
ORD IDord-3fe9d88544e44321a7784807e5749b33
Source noteuspto-grants-1983_09