SX0723

磷酸钠 二元

anhydrous, HPLC, Meets ACS Specifications

• 同義詞: 磷酸二钠, 磷酸二钠, 磷酸氢二钠, 磷酸氢钠
• 線性公式: Na₂HPO₄
• CAS號碼: 7558-79-4
• 分子量：: 141.96
• MDL號碼: MFCD00003496
• 分類程式碼代碼: 12352302
• 酶委員會索引編號: 231-448-7

屬性

• 品質等級: 200
• 化驗: ≥99.0%
• 形狀: crystalline powder
• 技術: HPLC: suitable
• 雜質: ≤0.01% Insoluble matter
• 損耗: ≤0.2% loss on drying
• pH值: 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)
• 溶解度: 77 g/L
• 負離子痕跡: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• 正離子痕跡: Fe: ≤0.002%; heavy metals (as Pb): ≤0.001%
• 紫外吸收: λ: 280 nm A_max: ≤0.05
• 運輸包裝: ambient
• 儲存溫度: room temp
• SMILES 字串: [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 密鑰: BNIILDVGGAEEIG-UHFFFAOYSA-L

描述

應用

anhydrous, HPLC, Meets ACS Specifications

分析報告

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

安全資訊

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable