901229

Sulfate d'ammonium

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99.0%

• Synonyme(s) : Mascagnite
• Formule linéaire : (NH₄)₂SO₄
• Numéro CAS: 7783-20-2
• Poids moléculaire : 132.14
• Numéro CE : 231-984-1
• Numéro MDL: MFCD00003391
• Code UNSPSC : 12352314
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent; anhydrous
• Niveau de qualité: 100
• Gamme de produits: Redi-Dri^™
• Pureté: ≥99.0%
• Forme: powder or crystals
• Impuretés: ≤0.005% Insoluble matter
• Résidus de calcination: ≤0.005%
• pH: 5.0-6.0 (25 °C, 5%)
• Pf: >280 °C (dec.) (lit.)
• Solubilité: water: soluble 132 g/L at 20 °C
• Densité: 1.77 g/mL at 25 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; phosphate (PO₄^3-): ≤5 ppm
• Traces de cations: Fe: ≤5 ppm; heavy metals: ≤5 ppm (by ICP-OES)
• Température de stockage: room temp
• Chaîne SMILES: N.N.OS(O)(=O)=O
• InChI: 1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
• Clé InChI: BFNBIHQBYMNNAN-UHFFFAOYSA-N

Description

Description générale

Ammonium sulfate is an ammonium salt commonly used as fertilizer. It can be synthesized by neutralizing sulfuric acid with ammonia. It can enhance the phytotoxicity of several herbicides like glyphosates. Ammonium sulfate is formed as a co-product during the manufacture of caprolactam, a precursor of nylon.

Application

Ammonium sulfate was used in methyl cellulose precipitable tannin assay to evaluate wine tannin in finished wine samples. It was also used in making externally mixed aerosols for analyzing the 1 × 3 tandem differential mobility analyzer (1 × 3-TDMA), which is mainly employed for determining the irreversibility of the hygroscopic growth factor of aerosol particles.

Informations légales

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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