Carbon Dioxide → Bicarbonate Ion

HRID 526656Notes

Reaction equation

[OH-:1].[NH4+:2].[C:3](=[O:5])=[O:4]>>[C:3](=[O:1])([O-:5])[O-:4].[NH4+:2].[NH4+:2].[C:3](=[O:1])([OH:5])[O-:4]

Participants

Reactant 2

HCID 280Carbon Dioxide

HCID 14923Ammonium Hydroxide

Product 2

HCID 769Bicarbonate Ion

HCID 517111Ammonium Carbonate

Procedure

Step 3, Second Recycling of Filtrate: It was speculated that excess of ammonium hydroxide together with carbon dioxide resulted with ammonium carbonate or bicarbonate, and that the limiting factor in precipitation was the quantity calcium ions. An aliquot of 100 mL of the filtrate (total volume 3370 mL) was mixed with 400 mL CaSO4.2H2O solution (2.0 g/L). A precipitate formed. It was filtered and oven dried. 0.274 grams were isolated. Additional CaSO4.2H2O solution did not cause further precipitation from this aliquot of the filtrate. Based on this measurement it is calculated that a total of 9.23 g of calcium carbonate could be precipitated from the filtrate. The product isolated was identified by XRD as being calcite.

Sources & evidence

ORD record: ord-5ab93a9b8d404002b412b592f2ce01a0
Source dataset: uspto-grants-2016_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09346684B2

Reaction notes

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