Water
Product Number: 1939-5
| Product Information | |
| Formula | H2O |
| Molecular Weight | 18.02 |
| Grade | LC-MS |
| CAS Number | 7732-18-5 |
| Beilstein/REAXYS Number | 2050024 |
| EC Number | 231-791-2 |
| MDL number | MFCD00011332 |
| UNSPSC Code | 12352303 |
| Exp. Date after Mfg. Date | 2 years |
| Test Method | ACS 11th Edition |
| Specifications | |
| Meets ACS Specification | Yes |
| Appearance (color) | Colorless |
| Form | Liquid |
| Purity (GC area %) | Min 99.9% |
| Filtered by 0.2um filter | Yes |
| Residue after evaporation | Max 1 ppm |
| Ultraviolet Spectrophotometry | |
| UV Absorbance 200 nm | Max 0.01 |
| UV Absorbance 254 nm | Max 0.005 |
| UV Absorbance 280 nm | Max 0.005 |
| Gradient Elution Test | |
| Largest eluted peak (254nm) | Max 1 mAU |
| Largest eluted peak (210nm) | Max 5 mAU |
| Fluorescence Trace Impurities | |
| at 450nm Emission | Max 0.1 ppb |
| at Emission Max for impurities | Max 0.02 ppb |
| Physical Properties | |
| Vapor Pressure | 23 hPa (20 °C) |
| Boiling Point | 100 °C (lit.) |
| Melting Point | 0 °C (lit.) |
| Density | 1.000 g/mL at 3.98 °C (lit.) |
| Refractive Index | n20/D 1.34 (lit.) |