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207861

Sigma-Aldrich

Ammonium carbonate

ACS reagent, ≥30.0% NH3 basis

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Synonym(s):
Hartshorn salt
Linear Formula:
(NH4)2CO3
CAS Number:
Molecular Weight:
96.09
Beilstein/REAXYS Number:
4253487
EC Number:
MDL number:
eCl@ss:
38020208
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

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)

SMILES string

N.N.OC(O)=O

InChI

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

InChI key

PRKQVKDSMLBJBJ-UHFFFAOYSA-N

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1 of 4

This Item
379999112041.01136
Ammonium carbonate ACS reagent, ≥30.0% NH3 basis

207861

Ammonium carbonate

-
Ammonium carbonate 99.999% trace metals basis

379999

Ammonium carbonate

-
Ammonium carbonate puriss., meets analytical specification of NF, Ph. Franc., FCC

11204

Ammonium carbonate

Essential Grade
Ammonium carbonate EMPROVE® ESSENTIAL, NF

1.01136

Ammonium carbonate

-
Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

500

grade

ACS reagent

grade

for inorganic trace analysis

grade

-

grade

-

cation traces

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

cation traces

-

cation traces

As: ≤3 mg/kg, Fe: ≤5 mg/kg, Pb: ≤3 mg/kg

cation traces

-

anion traces

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

anion traces

-

anion traces

chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

-

impurities

≤0.005% insolubles

impurities

-

impurities

residual solvents, complies, ≤0.0005% heavy metals (as Pb), ≤0.05% non-volatile matter

impurities

-

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.

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Gowariker V, et al.
The Fertilizer Encyclopedia, 42-42 (2009)
Middle distillates production via Fischer-Tropsch synthesis with integrated upgrading under supercritical conditions.
Zhang S, et al.
AIChE Journal, 60(7), 2573-2583 (2014)
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)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
Eagleson M.
Concise Encyclopedia Chemistry (1994)

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