901229

Solfato d′ammonio

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

• Sinonimo/i: Mascagnite
• Formula condensata: (NH₄)₂SO₄
• Numero CAS: 7783-20-2
• Peso molecolare: 132.14
• Numero CE: 231-984-1
• Numero MDL: MFCD00003391
• Codice UNSPSC: 12352314
• NACRES: NA.21

Proprietà

• Grado: ACS reagent; anhydrous
• Livello qualitativo: 100
• Nome Commerciale: Redi-Dri^™
• Saggio: ≥99.0%
• Stato: powder or crystals
• Impurezze: ≤0.005% Insoluble matter
• Residuo alla calcinazione: ≤0.005%
• pH: 5.0-6.0 (25 °C, 5%)
• Punto di fusione: >280 °C (dec.) (lit.)
• Solubilità: water: soluble 132 g/L at 20 °C
• Densità: 1.77 g/mL at 25 °C (lit.)
• Anioni in tracce: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; phosphate (PO₄^3-): ≤5 ppm
• Cationi in tracce: Fe: ≤5 ppm; heavy metals: ≤5 ppm (by ICP-OES)
• Temperatura di conservazione: room temp
• Stringa SMILE: N.N.OS(O)(=O)=O
• InChI: 1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4); BFNBIHQBYMNNAN-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Note legali

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable