SX0723

磷酸钠 二元

anhydrous, HPLC, Meets ACS Specifications

• 别名: 磷酸二钠, 磷酸二钠, 磷酸氢二钠, 磷酸氢钠
• 线性分子式: Na₂HPO₄
• CAS号: 7558-79-4
• 分子量: 141.96
• MDL编号: MFCD00003496
• UNSPSC代码: 12352302
• EC索引号: 231-448-7
• 方案: ≥99.0%
• 表单: crystalline powder
• 溶解性: 77 g/L

属性

• 质量水平: 200
• 方案: ≥99.0%
• 表单: crystalline powder
• 技术: HPLC: suitable
• 杂质: ≤0.01% Insoluble matter
• 缺失: ≤0.2% loss on drying
• pH值（酸碱度）: 8.7-9.3 (20 °C, 10 g/L in H₂O)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 250 °C (decomposition)
• 溶解性: 77 g/L
• 痕量阴离子: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• 痕量阳离子: Fe: ≤0.002%; heavy metals (as Pb): ≤0.001%
• 紫外吸收: λ: 280 nm A_max: ≤0.05
• 运输: ambient
• 储存温度: room temp
• SMILES字符串: [Na+].[Na+].[H]OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: BNIILDVGGAEEIG-UHFFFAOYSA-L

说明

应用

anhydrous, HPLC, Meets ACS Specifications

分析说明

Assay99.0% minChloride (Cl)0.002% maxFormWhite crystalline powderHeavy metals (as Pb)0.001% maxInsoluble matter0.01% maxIron (Fe)0.002% maxLoss on drying0.2% maxSulfate (SO4)0.005% maxUV Absorbance (1 M, water, 280 nm)0.05AU maxpH of a 5% solution at 25°C8.7-9.3

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