13464

Sodium sulfate

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

• Linear Formula: Na₂SO₄
• CAS Number: 7757-82-6
• Molecular Weight: 142.04
• EC Number: 231-820-9
• MDL number: MFCD00003504
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329750184
• NACRES: NA.21

속성

• grade: puriss.
• 분석: 99.0-100.5% (calc. to the dried substance)
• 형태: crystalline
• 품질: meets analytical specification of Ph. Eur., BP, USP
• 불순물: 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)
• 손실: ≤0.5% loss on drying, 130 °C
• pH: 5.2-8 (20 °C, 50 g/L)
• mp: 884 °C (lit.)
• density: 2.68 g/mL at 25 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤200 mg/kg
• 양이온 미량물: As: ≤2 mg/kg; Ca: ≤50 mg/kg; Fe: ≤50 mg/kg; Mg: ≤50 mg/kg; Zn: ≤300 mg/kg
• 적합성: complies for appearance of solution
• SMILES string: [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
• InChI key: PMZURENOXWZQFD-UHFFFAOYSA-L

설명

일반 설명

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.

애플리케이션

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable