Sodium hydroxide
ALDRICH/757527 - ultra dry, powder or crystals, 99.99% trace metals basis
Synonym: ‘Caustic soda’
CAS Number: 1310-73-2
Empirical Formula (Hill Notation): HNaO
Molecular Weight: 40.00
EC Number: 215-185-5
MDL Number: MFCD00003548
Linear Formula: NaOH
Product Type: Chemical
| assay | 99.99% trace metals basis |
| density | 2.13 g/cm3 |
| form | powder or crystals |
| impurities | ≤150.0 ppm Trace Metal Analysis |
| InChI | 1S/Na.H2O/h;1H2/q+1;/p-1 |
| InChI key | HEMHJVSKTPXQMS-UHFFFAOYSA |
| mp | 318 °C (lit.) |
| SMILES string | [OH-].[Na+] |
| solubility | water: soluble 1260 g/L at 20 °C |
| vapor density | >1 (vs air) |
| vapor pressure | <18 mmHg ( 20 °C) |
| 3 mmHg ( 37 °C) |
| Packaging: | 25 g in poly bottle |
| Symbol |  GHS05 |
| Signal word | Danger |
| Hazard statements | H290 - H314 |
| Precautionary statements | P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 35 |
| Safety Statements | 26-37/39-45 |
| RIDADR | UN 1823 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.99% trace metals basis |
| mp | 318 °C (lit.) |
| Density | 2.13 g/cm3 |
| UNSPSC | 12352302 |