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11204 Sigma-Aldrich

Ammonium carbonate

puriss., meets analytical specification of NF, Ph. Franc., FCC

Synonym: Hartshorn salt

  • CAS Number 506-87-6

  • Linear Formula (NH4)2CO3

  • Molecular Weight 96.09

  •  Beilstein/REAXYS Number 4253487

  •  EC Number 208-058-0

  •  MDL number MFCD00010890

  •  eCl@ss 38020208

  •  PubChem Substance ID 329749324

  •  NACRES NA.21

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Properties

Related Categories Acids & Bases, Ammonium Salts, Bases, Chemical Synthesis, Essential Chemicals,
Quality Level   100
vapor density   2.7 (vs air)
grade   puriss.
assay   30.0-34.0% NH3 basis (titration)
form   powder or crystals
quality   meets analytical specification of NF, Ph. Franc., FCC
impurities   residual solvents, complies
  ≤0.0005% heavy metals (as Pb)
  ≤0.05% non-volatile matter
ign. residue   ≤0.05% (as SO4)
anion traces   chloride (Cl-): ≤10 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   As: ≤3 mg/kg
  Fe: ≤5 mg/kg
  Pb: ≤3 mg/kg
suitability   complies for appearance of solution
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

Description

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.

Application

Ammonium carbonate may be employed in the preparation of 3,4-dihydropyrimidin-2(1H)-one and 1,4-dihydropyridine derivatives, via Biginelli and Hantzsch reactions. It can also be actively used as buffer in the separation, detection, and identification of the peptide fragments generated in the tryptic digests of ovalbumin and serum albumin, via size exclusion liquid chromatography and reverse phase liquid chromatography coupled to mass spectrometry.

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

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References

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