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Merck
CN

207861

Ammonium carbonate

ACS reagent, ≥30.0% NH3 basis

Synonym(s):

Hartshorn salt

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About This Item

Linear Formula:
(NH4)2CO3
CAS Number:
506-87-6
Molecular Weight:
96.09
NACRES:
NA.21
PubChem Substance ID:
329752026
eCl@ss:
38020208
UNSPSC Code:
12352300
EC Number:
208-058-0
MDL number:
MFCD00010890
Beilstein/REAXYS Number:
4253487
Grade:
ACS reagent
Form:
powder or chunks

Key Documents

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Product Name

Ammonium carbonate, ACS reagent, ≥30.0% NH3 basis

InChI key

PRKQVKDSMLBJBJ-UHFFFAOYSA-N

InChI

1S/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);2*1H3

SMILES string

N.N.OC(O)=O

grade

ACS reagent

vapor density

2.7 (vs air)

description

Mixture of variable proportions of ammonium bicarbonate and ammonium carbamate

form

powder or chunks

concentration

≥30.0% NH3

impurities

≤0.005% insolubles
≤0.01 nonvolatiles

anion traces

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.002%

cation traces

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

Quality Level

200

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Application

Ammonium carbonate has been used as a reducing agent in the preparation of an iron-catalyst for supercritical Fischer Tropsch synthesis (SC-FTS). It may also be used in the hydrometallurgical extraction of zinc, copper and nickel.
Ammonium carbonate may be employed in the following studies:
  • Preparation of 3,4-dihydropyrimidin-2(1H)-one and 1,4-dihydropyridine derivatives, via Biginelli and Hantzsch reactions.
  • Preparation of ammonium carbonate buffer.
  • Synthesis of dihyropyridones derivatives.

General description

Ammonium carbonate is an ammonium salt. It is colorless and is composed of water soluble cubic crystals. It can be synthesized by reacting carbon dioxide with ammonia. It is widely employed as a CO2 source in fire extinguishers. Calorimetric estimation of enthalpies of absorption of CO2 in aqueous solutions of ammonium carbonate in the temperature range of 35-80°C have been reported.
Ammonium carbonate is commonly used in producing ammonium sulfate as a fertilizer. It is formed by the reaction of ammonia and carbon dioxide. Ammonium carbonate is also the principal ingredient of smelling salts because of its characteristic strong ammonia odor.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ8471
MKCZ8472
0000501025
0000501025
0000491022

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Middle distillates production via Fischer-Tropsch synthesis with integrated upgrading under supercritical conditions.
Zhang S, et al.
AIChE Journal, 60(7), 2573-2583 (2014)
Gowariker V, et al.
The Fertilizer Encyclopedia, 42-42 (2009)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
Diesel-length aldehydes and ketones via supercritical Fischer Tropsch Synthesis on an iron catalyst.
Durham E, et al.
Applied Catalysis A: General, 386(1), 65-73 (2010)
Four-component reaction between cyanoacetamide, aryl aldehydes, and ethyl acetoacetate with ammonium carbonate.
Dehghan A, et al.
Research on Chemical Intermediates, 41(2), 1001-1009 (2015)
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