Sodium hydroxide
SIGALD/306576 - pellets, semiconductor grade, 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 at 20 °C |
form | pellets |
grade | semiconductor grade |
impurities | <1% Na2CO3 |
InChI | 1S/Na.H2O/h;1H2/q+1;/p-1 |
InChI key | HEMHJVSKTPXQMS-UHFFFAOYSA |
mp | 318 °C (lit.) |
Quality Level | 200 ![]() |
SMILES string | [OH-].[Na+] |
solubility | water: soluble 1,260 g/L at 20 °C |
technique(s) | HPLC: suitable |
vapor density | >1 (vs air) |
vapor pressure | <18 mmHg ( 20 °C) |
3 mmHg ( 37 °C) |
Application: |
|
Application: | Sodium hydroxide is used as a reagent: • for the preparation of synthesis solution during the formation of LTA zeolite crystals in the hydrothermal synthesis process. • in the synthesis of 2-line ferrihydrite (spHm) and rhombohedral Hm (rhHm) and as a base to adjust the pH of the mixed solution. • to raise the pH of the HEPES buffer during catalytic reactivity to nanoparticle (CRNP) assay and synthesis. • in the synthesis of zinc oxide nanoparticles from zinc chloride during lithium doping impact on the cathodoluminescence of the nanoparticles. |
General description: | Sodium hydroxide (caustic soda, NaOH) is a water-soluble inorganic base with a wide range of industrial applications such as titration methods, dissolution testing, and pH adjusting. It is also used as a precipitant to precipitate transition metal hydroxides. |
Packaging: | 25, 100, 500 g in poly bottle |
Symbol | ![]() |
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 at 20 °C |
UNSPSC | 12352316 |