Nitric Acid → Carbon Dioxide

HRID 1995053ノート

反応式

HRID 1995053 の反応式
[U].[N+:2]([O-:5])([OH:4])=[O:3].[C:6](=O)([OH:8])[O-:7].[NH4+:10].[OH-].[Ca+2:12].[OH-].C(=O)([O-])[O-].[Ca+2]>O>[C:6](=[O:8])=[O:7].[N+:2]([O-:5])([O-:4])=[O:3].[Ca+2:12].[N+:2]([O-:5])([O-:4])=[O:3].[N+:2]([O-:5])([O-:4])=[O:3].[NH4+:10]

参加物

9

反応物 5

HCID 944Nitric AcidHCID 10112Calcium CarbonateHCID 14013Ammonium BicarbonateHCID 23989UraniumHCID 6093208Calcium Hydroxide

生成物 3

HCID 280Carbon DioxideHCID 22985Ammonium nitrateHCID 24963Calcium nitrate

試薬・触媒・溶媒 1

HCID 962Water溶媒2 回

実験手順

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).

後処理

  1. additionpreferably to within a range of about 5 to about 4, by the addition

出典と根拠

ORDレコード
ord-3fe9d88544e44321a7784807e5749b33
出典データセット
uspto-grants-1983_09
特許番号
US04402918

反応ノート

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