Ammonium Bicarbonate → Lanthanum carbonate anhydrous

HRID 1755960Notes

Reaction equation

HRID 1755960 reaction equation
[N+]([O-])([O-])=O.[La+3:5].[N+]([O-])([O-])=O.[N+]([O-])([O-])=O.[La].[O-2].[La+3].[O-2].[O-2].[La+3].[C:20](=[O:23])([O-:22])[OH:21].[NH4+]>[N+]([O-])(O)=O.[N+]([O-])([O-])=O>[C:20](=[O:21])([O-:23])[O-:22].[La+3:5].[C:20](=[O:21])([O-:23])[O-:22].[C:20](=[O:21])([O-:23])[O-:22].[La+3:5]

Participants

7

Reactant 4

HCID 14013Ammonium BicarbonateHCID 23926LanthanumHCID 25122Lanthanum nitrateHCID 150906Lanthanum sesquioxide

Product 1

HCID 168924Lanthanum carbonate anhydrous

Reagents, catalysts & solvents 2

HCID 943NitrateSolventHCID 944Nitric AcidSolvent

Procedure

An aqueous solution of lanthanum nitrate in a concentration of 0.2 mole/liter as lanthanum and having a pH of 3 was prepared by dissolving lanthanum oxide in nitric acid and 1 liter of this nitrate solution was admixed under agitation at room temperature with 1 liter of an aqueous solution containing 79 g (1 mole) of ammonium hydrogen carbonate to give an aqueous slurry of lanthanum carbonate. The amount of the ammonium hydrogen carbonate added to the nitrate solution was in excess by 67% over the stoichiometrically equivalent amount to the lanthanum nitrate.

Workup

  1. customwas prepared

Sources & evidence

ORD record
ord-7153c913682b46d1b35aec4be9c28c33
Source dataset
uspto-grants-1995_08
Patent number
US05439656

Reaction notes

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