Water
SIGALD/320072 - ACS reagent
CAS Number: 7732-18-5
Empirical Formula (Hill Notation): H2O
Molecular Weight: 18.02
EC Number: 231-791-2
MDL Number: MFCD00011332
Linear Formula: H2O
Product Type: Chemical
| agency | suitable for EPA 601 |
| anion traces | chloride (Cl-): ≤0.4 ppm |
| nitrate (NO3-): ≤0.4 ppm | |
| phosphate (PO43-): ≤1.0 ppm | |
| sulfate (SO42-): ≤1.0 ppm | |
| bp | 100 °C (lit.) |
| cation traces | heavy metals (as Pb): ≤0.01 ppm |
| conductivity | ≤2 μmho per cm at 25 °C |
| density | 1.000 g/mL at 3.98 °C (lit.) |
| form | liquid |
| grade | ACS reagent |
| impurities | MnO4- reducers, passes test |
| ≤0.01% Silicate (as SiO2) | |
| ≤0.01 ppm silicate | |
| InChI | 1S/H2O/h1H2 |
| InChI key | XLYOFNOQVPJJNP-UHFFFAOYSA |
| mp | 0 °C (lit.) |
| pH | 6.0-8.0 (25 °C) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | O |
| vapor density | <1 (vs air) |
| vapor pressure | 3 mmHg |
| Application: | Water can be used as a:• Solvent to ensure the appropriate deposition and recrystallization of the matrix material used in the matrix-assisted laser desorption/ionization (MALDI) analysis. • Mobile phase component in the high-performance liquid chromatography (HPLC) method used for the separation of polar compounds. |
| Packaging: | 2.5, 4×4 L in poly bottle |
| Packaging: | 500 mL in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| bp | 100 °C (lit.) |
| mp | 0 °C (lit.) |
| Density | 1.000 g/mL at 3.98 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12191602 |