13464

Sulfate de sodium

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

• Formule linéaire : Na₂SO₄
• Numéro CAS: 7757-82-6
• Poids moléculaire : 142.04
• Numéro CE : 231-820-9
• Numéro MDL: MFCD00003504
• Code UNSPSC : 12352302
• ID de substance PubChem : 329750184
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 200
• Qualité: puriss.; meets analytical specification of Ph. Eur., BP, USP
• Pureté: 99.0-100.5% (calc. to the dried substance)
• Forme: crystalline
• Impuretés: 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)
• Perte: ≤0.5% loss on drying, 130 °C
• pH: 5.2-8 (20 °C, 50 g/L)
• Pf: 884 °C (lit.)
• Densité: 2.68 g/mL at 25 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤200 mg/kg
• Traces de cations: As: ≤2 mg/kg; Ca: ≤50 mg/kg; Fe: ≤50 mg/kg; Mg: ≤50 mg/kg; Zn: ≤300 mg/kg
• Adéquation: complies for appearance of solution
• Chaîne SMILES: [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
• Clé InChI: PMZURENOXWZQFD-UHFFFAOYSA-L

Description

Description générale

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.

Application

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable