disodium hydrogen (hydrogen phosphonatooxy)phosphonate

• ChemBase编号: 102985
• 分子式: H2Na2O7P2
• 平均质量: 221.938742
• 单一同位素质量: 221.90711423
• SMILES: [Na+].[Na+].OP(=O)([O-])OP(=O)(O)[O-]
• Canonical SMILES: [O-]P(=O)(OP(=O)(O)[O-])O.[Na+].[Na+]
• InChI: InChI=1S/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-2
• InChIKey: GYQBBRRVRKFJRG-UHFFFAOYSA-L

名称和登记号

名称

• IUPAC标准名: disodium hydrogen (hydrogen phosphonatooxy)phosphonate
• IUPAC传统名: dipotassium diphosphate(2-); disodium pyrophosphate 2-
• 别名: 二磷酸钠 二元; 焦磷酸二氢二钠; 焦磷酸钠 二元; Diphosphoric Acid Disodium Salt; Disodium Dihydrogen Pyrophosphate; Sodium Pyrophosphate dibasic; Sodium diphosphate dibasic; PYROPHOSPHATE DISODIUM SALT; Diphosphoric acid, disodium salt; Disodium diphosphate; Sodium acid pyrophosphate, SAPP; Disodium pyrophosphate; Sodium pyrophosphate dibasic

登记号

• CAS号: 7758-16-9
• EC号: 231-835-0
• MDL号: MFCD00014246
• PubChem SID: 24886207; 162089609; 24898911; 24886205
• PubChem CID: 24451
• Chemspider ID: 22859
• 美国药典/FDA物质标识码: H5WVD9LZUD
• 维基百科标题: Disodium_pyrophosphate

理论计算性质

• Acid pKa: 1.7026764
• 质子受体: 6
• 质子供体: 2
• LogD (pH = 5.5): -5.9322352
• LogD (pH = 7.4): -6.7963495
• Log P: -1.4419023
• 摩尔折射率: 23.2814 cm^3
• 极化性: 10.543314 Å^3
• 极化表面积: 129.95 Å^2
• 可自由旋转的化学键: 2
• 里宾斯基五规则: true

分子性质

理化性质

• 溶解度: 11.9 g/100 mL (20 °C) in water; H2O: soluble0.1 M at 20 °C, clear, colorless
• 外观: white odorless powder
• 熔点: >600 °C; ca. 200 °C
• 闪点: Non-flammable
• 密度: 1.1-1.3 g/cm^3; ca. .8 - 1.2 g/cm^3 at 20 °C (bulk density)
• 折射率: 1.4645 (hexahydrate)
• 紫外吸收波长: λ: 260 nm Amax: 0.11; λ: 280 nm Amax: 0.09
• pH值: 3.5-4.5 (20 °C, 0.1 M in H2O, freshly prepared)

安全信息

• 保存条件: Room Temperature (15-30°C)
• RTECS编号: UX6475000
• 德国WGK号: 2
• 欧盟危险品索引: Not listed
• 半数致死量: 2650 mg/kg (mouse, oral)
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

产品相关信息

• 纯度: ≥99.0% (T)
• 级别: practical grade
• 杂质: insoluble matter, passes filter test
• 痕量阳离子: Al: ≤5 mg/kg; As: ≤0.2 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤100 mg/kg; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤10 mg/kg; Fe: ≤50 mg/kg; K: ≤300 mg/kg; K: ≤500 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• 痕量阴离子: chloride (Cl-): ≤50 mg/kg
• 干燥失重: ≤0.5% loss on drying, 200 °C
• λ: 1 M in H2O
• 产品线: BioUltra; BioXtra
• 线性分子式: Na2H2P2O7

详细说明

MP Biomedicals - 02150151

Disodium Salt
Anhydrous

Sigma Aldrich - P8135

包装
500 g in poly bottle