产品展厅
产品展厅
| 中文名 | 磷酸氢二钠 |
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| 英文名 | Sodium Phosphate, Dibasic |
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| CAS | 7558-79-4 |
| 分子式 | HNa2O4P |
| 分子量 | 141.96 |
| EINECS | 231-448-7 |
| 结构式 |
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性质 |
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| 熔点 | 243-245 °C |
| 密度 |
1.064 g/mL at 20 °C |
| 蒸气密度 |
4.9 (vs air) |
| FEMA | 2398 | DISODIUM PHOSPHATE |
| 储存条件 | Store at RT. |
| 溶解度 |
H2O: 0.5 M at 20 °C, clear, colorless |
| 形态 |
powder |
| 颜色 | White |
| PH值 | 8.9-9.2 (25℃, 50g/L in water) |
| 酸度系数(pKa) | (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
| 水溶解性 | >=10 g/100 mL at 20 oC |
| 波长(λmax) |
λ: 260 nm Amax: 0.019 λ: 280 nm Amax: 0.016 |
| 敏感性 | Hygroscopic |
| Merck | 14,8659 |
| 稳定性 | Stable. Incompatible with strong acids. Hygroscopic. |
| InChIKey | BNIILDVGGAEEIG-UHFFFAOYSA-L |
| EPA化学物质信息 | Disodium phosphate (7558-79-4) |
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