11204

Ammonium carbonate

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

• Sinonimo/i: Hartshorn salt
• Formula condensata: (NH₄)₂CO₃
• Numero CAS: 506-87-6
• Peso molecolare: 96.09
• Beilstein: 4253487
• Numero CE: 208-058-0
• Numero MDL: MFCD00010890
• Codice UNSPSC: 12352300
• eCl@ss: 38020208
• ID PubChem: 329749324
• NACRES: NA.21

Proprietà

• Densità del vapore: 2.7 (vs air)
• Grado: puriss.
• Forma fisica: powder or crystals
• Qualità: meets analytical specification of NF, Ph. Franc., FCC
• Concentrazione: 30.0-34.0% (NH₃ , titration)
• Impurezze: residual solvents, complies; ≤0.0005% heavy metals (as Pb); ≤0.05% non-volatile matter
• Residuo alla calcinazione: ≤0.05% (as SO₄)
• Anioni in tracce: chloride (Cl^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Cationi in tracce: As: ≤3 mg/kg; Fe: ≤5 mg/kg; Pb: ≤3 mg/kg
• Compatibilità: complies for appearance of solution
• Stringa SMILE: N.N.OC(O)=O
• InChI: 1S/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);2*1H3; PRKQVKDSMLBJBJ-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable