13464

Sulfato de sódio

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

• Fórmula linear: Na₂SO₄
• Número CAS: 7757-82-6
• Peso molecular: 142.04
• Número CE: 231-820-9
• Número MDL: MFCD00003504
• Código UNSPSC: 12352302
• ID de substância PubChem: 329750184
• NACRES: NA.21

Propriedades

• grau: puriss.
• Ensaio: 99.0-100.5% (calc. to the dried substance)
• Formulário: crystalline
• qualidade: meets analytical specification of Ph. Eur., BP, USP
• Impurezas: 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)
• perda: ≤0.5% loss on drying, 130 °C
• pH: 5.2-8 (20 °C, 50 g/L)
• pf: 884 °C (lit.)
• densidade: 2.68 g/mL at 25 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤200 mg/kg
• traços de cátion: As: ≤2 mg/kg; Ca: ≤50 mg/kg; Fe: ≤50 mg/kg; Mg: ≤50 mg/kg; Zn: ≤300 mg/kg
• adequação: complies for appearance of solution
• cadeia de caracteres 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
• chave InChI: PMZURENOXWZQFD-UHFFFAOYSA-L

Descrição

Descrição geral

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.

Aplicação

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

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable