467782

Phosphate monobasique d′ammonium

≥99.99% trace metals basis

• Synonyme(s) : Dihydrogénophosphate d’ammonium, Mono-ammonium phosphate, prim-phosphate d’ammonium
• Formule linéaire : NH₄H₂PO₄
• Numéro CAS: 7722-76-1
• Poids moléculaire : 115.03
• Numéro CE : 231-764-5
• Numéro MDL: MFCD00003396
• Code UNSPSC : 12352300
• ID de substance PubChem : 329757242
• Nomenclature NACRES : NA.55

Propriétés

• Qualité: for inorganic trace analysis
• Niveau de qualité: 100
• Pureté: ≥99.99% trace metals basis
• Forme: solid
• Impuretés: ≤0.005% insolubles; <100 ppm total metallic impurities
• pH: 3.8-4.4
• Pf: 190 °C (dec.) (lit.)
• Solubilité: water: soluble(lit.)
• Traces d'anions: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.01%
• Traces de cations: Ca: 0.001%; Fe: ≤0.001%; K: ≤0.005%; Mg: 0.0005%; Na: ≤0.005%; heavy metals: ≤5 ppm
• Chaîne SMILES: N.OP(O)(O)=O
• InChI: 1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
• Clé InChI: LFVGISIMTYGQHF-UHFFFAOYSA-N

Description

Description générale

Ammonium phosphate monobasic (APM) is an inorganic salt widely used in fertilizer, baking powder and yeast production. It is also employed as an agent to control pH of a solution, in corrosion inhibition. APM can be prepared by reacting phosphoric acid with anhydrous ammonia maintaining the pH below 5.8. The change in some of the physical characteristics on its addition to a high carbonate containing unfired and fired illitic shale has been studied.

Application

Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH₄Fe₂(PO₄)₂.

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable