13464-M

硫酸钠

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

• 线性分子式: Na₂SO₄
• CAS号: 7757-82-6
• 分子量: 142.04
• EC 号: 231-820-9
• MDL编号: MFCD00003504
• UNSPSC代码: 12352302
• PubChem化学物质编号: 329750184
• NACRES: NA.21

属性

• 蒸汽压: <0.1 hPa ( 20 °C)
• 质量水平: 100
• 等级: puriss.
• 方案: 99.0-100.5% (calc. to the dried substance)
• 表单: crystalline
• 质量: meets analytical specification of Ph. Eur., BP, USP
• 杂质: 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)
• 缺失: ≤0.5% loss on drying, 130 °C
• pH值（酸碱度）: 5.2-8 (20 °C, 50 g/L)
• mp: 884 °C (lit.)
• 密度: 2.68 g/mL at 25 °C (lit.)
• 痕量阴离子: chloride (Cl^-): ≤0.02%
• 痕量阳离子: As: ≤0.0002%; Ca: ≤0.005%; Fe: ≤0.005%; Mg: ≤0.005%; Zn: ≤0.03%
• 适用性: complies for appearance of solution
• SMILES字符串: [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

说明

一般描述

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.[1] Sodium sulfate can be produced during Leblanc process, from sodium chloride and sulfuric acid.[2]

应用

Sodium sulfate (Na₂SO₄) may be employed as a reagent for the precipitation of globulins during the estimation of proteins in blood.[3]

安全信息

• 储存分类代码: 13 - Non Combustible Solids
• WGK: WGK 1
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable