产品说明
应用
磷酸氢二钠可用于：
基本信息
| 线性分子式 | Na2HPO4 |
| 分子量 | 141.96 |
| EC 号 | 231-448-7 |
| MDL编号 | MFCD00003496 |
| eCl@ss | 38070211 |
| PubChem化学物质编号 | 57652328 |
| NACRES | NA.25 |
产品性质
| 质量水平 | 200 |
| 等级 | for molecular biology |
| 产品线 | BioUltra |
| 测定 | ≥99.5% (T) |
| 形式 | coarse powder fine crystals powder |
| 杂质 | DNases, none detected RNases, none detected insoluble matter, passes filter test phosphatases, none detected proteases, none detected ≤0.001% total nitrogen (N) |
| 缺失 | ≤0.1% loss on drying, 110 ℃ |
| pH值(酸碱度) | 8.8-9.4 (25 ℃, 0.5 M in H2O) |
| pKa (25 ℃) | (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |
| 溶解性 | H2O: 0.5 M at 20 ℃, clear, colorless |
| 痕量阴离子 | chloride (Cl-): ≤10 mg/kg sulfate (SO42-): ≤50 mg/kg |
| 痕量阳离子 | Al: ≤5 mg/kg As: ≤0.2 mg/kg Ba: ≤5 mg/kg Bi: ≤5 mg/kg Ca: ≤10 mg/kg Cd: ≤5 mg/kg Co: ≤5 mg/kg Cr: ≤5 mg/kg Cu: ≤5 mg/kg Fe: ≤5 mg/kg K: ≤50 mg/kg Li: ≤5 mg/kg Mg: ≤5 mg/kg Mn: ≤5 mg/kg Mo: ≤5 mg/kg Ni: ≤5 mg/kg Pb: ≤5 mg/kg Sr: ≤10 mg/kg Zn: ≤5 mg/kg |
| λ | 0.5 M in H2O |
| 紫外吸收 | λ: 260 nm Amax: ≤0.025 λ: 280 nm Amax: ≤0.020 |
| SMILES string | [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 |
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 |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
Sigma-Aldrich
m.cnreagent.com
