tripotassium phosphate

• ChemBase编号: 130029
• 分子式: K3O4P
• 平均质量: 212.266261
• 单一同位素质量: 211.84454015
• SMILES: [K+].[K+].[K+].[O-]P(=O)([O-])[O-]
• Canonical SMILES: [O-]P(=O)([O-])[O-].[K+].[K+].[K+]
• InChI: InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3
• InChIKey: LWIHDJKSTIGBAC-UHFFFAOYSA-K

名称和登记号

名称

• IUPAC标准名: tripotassium phosphate
• IUPAC传统名: tripotassium phosphate
• 别名: 正磷酸钾; 磷酸三钾; Phosphate buffer; 磷酸钾缓冲液 溶液; 用于 HPCE 的 pH 3.0 缓冲溶液; 磷酸/磷酸二氢钾 溶液; 磷酸/磷酸二氢钾缓冲溶液; 磷酸钾缓冲液 溶液; 磷酸钾单水合物; 磷酸钾, 无水; Tripotassium phosphate; Potassium phosphate; tribasic; Tripotassium phosphate; Potassium phosphate tribasic; Phosphate buffer; Potassium phosphate buffer solution; Buffer solution HPCE pH 3.0; Potassium phosphate buffer solution; Buffer solution from phosphoric acid/Potassium dihydrogen phosphate; Phosphoric acid/Potassium dihydrogenphosphate solution; Potassium phosphate, tribasic monohydrate; Potassium phosphate monohydrate; Potassium phosphate, tribasic; Potassium phosphate, anhydrous

登记号

• CAS号: 27176-10-9; 7778-53-2
• EC号: 231-907-1
• MDL号: MFCD00036295; MFCD00150410
• 默克索引号: 147660
• PubChem SID: 24898681; 162224314; 24887492; 24888014
• PubChem CID: 62657
• Chemspider ID: 56408
• 维基百科标题: Tripotassium_phosphate

理论计算性质

• Acid pKa: 1.7961261
• 质子受体: 4
• 质子供体: 0
• LogD (pH = 5.5): -3.3916447
• LogD (pH = 7.4): -3.9718332
• Log P: -1.0201038
• 摩尔折射率: 11.2868 cm^3
• 极化性: 5.564544 Å^3
• 极化表面积: 86.25 Å^2
• 可自由旋转的化学键: 0
• 里宾斯基五规则: true

分子性质

理化性质

• 溶解度: 90 g/100 mL (20 °C) in water; insoluble in alcohol; Soluble in water. Insoluble in alcohol
• 外观: Granular; white powder ; deliquescent
• 熔点: 1340°C; 1380 °C
• 闪点: Non-flammable
• 密度: 1.050 g/mL at 20 °C; 2.564; 2.564 g/cm^3 (17 °C); 2.564 g/mL at 25 °C(lit.)
• 紫外吸收波长: λ: 210 nm Amax: 0.05; λ: 220 nm Amax: 0.04; λ: 230 nm Amax: 0.03; λ: 300 nm Amax: 0.02; λ: 500 nm Amax: 0.02
• pKb: 1.6
• 电导率: ~9.5 mS/cm at 20 °C
• 荧光: λex 200-600 nm; λem 300-800 nm (corresponds)
• pH值: 1.9; 3.0 (25 °C)

安全信息

• 保存注意事项: Hygroscopic
• RTECS编号: TC8450000
• 欧盟危险性物质标志: 刺激性(Irritant) (Xi)
• 联合国危险货物编号: 1805
• 德国WGK号: 1; 2
• 联合国危险货物等级: 8
• 联合国危险货物包装类别(PG): 3
• 危险公开号: 36/38; 38-41; R36, R38
• 安全公开号: 26; 26-37; 26-39; S26, S36
• TSCA收录: 是
• 欧盟危险品索引: Not listed
• GHS危险品标识: GHS05; GHS07
• GHS警示词: Danger
• 主要危害: Irritant
• NFPA704:
  

  0

  2

  0
• GHS危险声明: H314; H315-H318; H315-H319; H315-H319-H313
• GHS警示性声明: P280-P305 + P351 + P338; P280-P305 + P351 + P338-P310; P280-P305+P351+P338-P302+P352-P321-P362-P312; P280-P305+P351+P338-P302+P352-P321-P362-P332+P313
• 个人保护装置: dust mask type N95 (US), Eyeshields, Gloves; Faceshields, Gloves, Goggles
• RID/ADR: UN 1805 8/PG 3

产品相关信息

• 纯度: ≥95%; ≥98%; 95%; 97%
• 浓度: 150 mM potassium phosphate
• 级别: for HPCE; for HPLC; puriss. p.a.; purum; reagent grade
• 适用性: corresponds to standard for filter test; corresponds to standard for RP gradient test; in accordance for HPCE; suitable for detection of free chlorine (DPD method)
• 有效期: (limited shelf life, expiry date on the label)
• 干燥失重: ≤4% loss on ignition, 800 °C
• 品质说明: ampule
• λ: in concentrate
• abs.: UV absorption/200-800 nm in accordance
• 线性分子式: K3PO4

详细说明

Sigma Aldrich - 82622

Preparation Note
在洁净室条件下制备并经过 0.2μm 膜过滤

Sigma Aldrich - 79628

Application
建议用于离子对色谱
包装
安瓿瓶装浓缩液（各 ~0.33M），用于 6×1L 0.005M 即用型溶液（各组分）

Sigma Aldrich - P5629

包装
1 kg in poly bottle
10 kg in poly drum
25, 500 g in poly bottle