901229

Sulfato de amonio

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

• Sinónimos: Mascagnita
• Fórmula lineal: (NH₄)₂SO₄
• Número de CAS: 7783-20-2
• Peso molecular: 132.14
• EC Number: 231-984-1
• MDL number: MFCD00003391
• UNSPSC Code: 12352314
• NACRES: NA.21

Propiedades

• grade: ACS reagent; anhydrous
• Quality Level: 100
• product line: Redi-Dri^™
• assay: ≥99.0%
• form: powder or crystals
• impurities: ≤0.005% Insoluble matter
• ign. residue: ≤0.005%
• pH: 5.0-6.0 (25 °C, 5%)
• mp: >280 °C (dec.) (lit.)
• solubility: water: soluble 132 g/L at 20 °C
• density: 1.77 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; phosphate (PO₄^3-): ≤5 ppm
• cation traces: Fe: ≤5 ppm; heavy metals: ≤5 ppm (by ICP-OES)
• storage temp.: room temp
• SMILES string: N.N.OS(O)(=O)=O
• InChI: 1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
• InChI key: BFNBIHQBYMNNAN-UHFFFAOYSA-N

Descripción

General description

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.

Legal Information

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

Información de seguridad

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable