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| CAS Number: | 7732-18-5 |
| Linear Formula: | H2O |
| Molecular Weight: | 18.02 |
| Beilstein Registry Number: | 2050024 |
| EC Number: | 231-791-2 |
| MDL number: | MFCD00011332 |
Description
| Preparation Note | prepared under clean room condition, filtered through a 0.2 μm membrane filter in glass bottles of highest purity class |
Properties
| grade | for HPLC |
| | for gradient elution (in HPLC) |
| shelf life | (limited shelf life, expiry date on the label) |
| total impurities | ≤1 ppb quinine fluor., 254 nm |
| | ≤1 ppb quinine fluor., 365 nm |
| evapn. residue | ≤0.0001% |
| refractive index | n20/D 1.34(lit.) |
| bp | 100 °C(lit.) |
| density | 1.000 g/mL at 3.98 °C(lit.) |
| anion traces | bromide (Br-): ≤0.01 mg/kg |
| | chloride (Cl-): ≤0.01 mg/kg |
| | fluoride (F-): ≤0.01 mg/kg |
| | iodide (I-): ≤0.01 mg/kg |
| | nitrate (NO3-): ≤0.01 mg/kg |
| | nitrite (NO2-): ≤0.01 mg/kg |
| | phosphate (PO4-): ≤0.01 mg/kg |
| | sulfate (SO42-): ≤0.01 mg/kg |
| abs. | gradient grade/210 nm ≤5 mAU |
| | gradient grade/254 nm ≤1 mAU |
Safety
References
| Merck | Merck 13,10098 |
| reference | Sax 6, 2735 |
