13464-M

Solfato di sodio

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)

• Formula condensata: Na₂SO₄
• Numero CAS: 7757-82-6
• Peso molecolare: 142.04
• Numero CE: 231-820-9
• Numero MDL: MFCD00003504
• Codice UNSPSC: 12352302
• ID PubChem: 329750184
• NACRES: NA.21

Proprietà

• Tensione di vapore: <0.1 hPa ( 20 °C)
• Livello qualitativo: 100
• Grado: puriss.
• Saggio: 99.0-100.5% (calc. to the dried substance)
• Forma fisica: crystalline
• Qualità: meets analytical specification of Ph. Eur., BP, USP
• Impurezze: acidity or alkalinity, complies; residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤0.04% free alkali (as NaOH); ≤0.05% free acid (as H₂SO₄)
• Perdita: ≤0.5% loss on drying, 130 °C
• pH: 5.2-8 (20 °C, 50 g/L)
• Punto di fusione: 884 °C (lit.)
• Densità: 2.68 g/mL at 25 °C (lit.)
• Anioni in tracce: chloride (Cl^-): ≤0.02%
• Cationi in tracce: As: ≤0.0002%; Ca: ≤0.005%; Fe: ≤0.005%; Mg: ≤0.005%; Zn: ≤0.03%
• Compatibilità: complies for appearance of solution
• Stringa SMILE: [Na+].[Na+].[O-]S([O-])(=O)=O
• InChI: 1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2; PMZURENOXWZQFD-UHFFFAOYSA-L

Descrizione

Descrizione generale

Sodium sulfate (Na₂SO₄) can be obtained directly via precipitation from a saturated solution of Na₂SO₄ at room temperature (20°C). Its crystallization and growth rates at room temperature (20°C) under various conditions have been investigated. Sodium sulfate can be produced during Leblanc process, from sodium chloride and sulfuric acid.

Applicazioni

Sodium sulfate (Na₂SO₄) may be employed as a reagent for the precipitation of globulins during the estimation of proteins in blood.

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