Potassium hydroxide
SIGALD/30603 - pellets, reag. Ph. Eur., ≥85%
Synonym: Caustic potash
CAS Number: 1310-58-3
Empirical Formula (Hill Notation): KOH
Molecular Weight: 56.11
EC Number: 215-181-3
MDL Number: MFCD00003553
Linear Formula: KOH
Product Type: Chemical
| agency | reag. Ph. Eur. |
| USP/NF | |
| anion traces | chloride (Cl-): ≤0.02% |
| phosphate (PO43-): ≤0.01% | |
| sulfate (SO42-): ≤0.02% | |
| assay | ≥85% |
| cation traces | Al: ≤0.001% |
| Ca: ≤0.001% | |
| Fe: ≤0.001% | |
| Na: ≤1.0% | |
| Ni: ≤0.0005% | |
| form | pellets |
| impurities | ≤2.0% K2CO3 |
| InChI | 1S/K.H2O/h;1H2/q+1;/p-1 |
| InChI key | KWYUFKZDYYNOTN-UHFFFAOYSA |
| mp | 361 °C (lit.) |
| pH | ~13.5 (25 °C, 5.6 g/L) |
| Quality Level | 200  |
| SMILES string | [OH-].[K+] |
| solubility | water: soluble ((1,130 g/l (68 °F / 20 °C)) |
| vapor pressure | 1 mmHg ( 719 °C) |
| Application: | Potassium hydroxide can be used as a base:• In the Pd-catalyzed Heck reaction of aryl halides with alkenes. • To synthesize β-alkylated alcohols via pincer-Ni catalyzed Guerbet reaction. • For the hydroxylation of aryl or heteroarylboronic acids to corresponding phenols. It can also be used as a catalyst for the:• Transesterification of triglycerides to prepare biodiesels. • Synthesis of β-phenylethylamines via intermolecular addition of arylamines to styrenes. • Claisen-Schmidt condensation reaction to synthesize chalcones. |
| General description: | Potassium hydroxide is a strong alkali that can be used in nucleophilic substitution reactions, addition reactions, and basic hydrolysis reactions. It can also be used to catalyze aldol-type reactions. |
| Packaging: | This product is also available in glass bottles. |
| Symbol |   GHS05,GHS07,GHS05,GHS07 |
| Signal word | Danger-Danger |
| Hazard statements | H290 - H302 - H314 - H290 - H302 - H314 |
| Precautionary statements | P234 - P260 - P280 - P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 - P301 + P312 |
| Hazard Codes | C |
| Risk Statements | 22-35 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 1813 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥85% |
| mp | 361 °C (lit.) |
| UNSPSC | 12352106 |