Potassium hydroxide
SIAL/911062 - free-flowing, Redi-Dri™, ACS reagent, ≥85%, pellets
Synonym: Caustic potash
CAS Number: 1310-58-3
Empirical Formula (Hill Notation): HKO
Molecular Weight: 56.11
MDL Number: MFCD00003553
Linear Formula: KOH
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.01% |
| phosphate (PO43-): ≤5 ppm | |
| sulfate (SO42-): ≤0.003% | |
| assay | ≥85% |
| cation traces | Ca: ≤0.005% |
| Fe: ≤0.001% | |
| heavy metals: ≤0.001% (by ICP-OES) | |
| Mg: ≤0.002% | |
| Na: ≤0.05% | |
| Ni: ≤0.001% | |
| form | pellets |
| grade | ACS reagent |
| impurities | ≤0.001% N compounds |
| ≤2.0% K2CO3 | |
| 10-15% water | |
| InChI | 1S/K.H2O/h;1H2/q+1;/p-1 |
| InChI key | KWYUFKZDYYNOTN-UHFFFAOYSA |
| mp | 361 °C (lit.) |
| product line | Redi-Dri™ |
| quality | free-flowing |
| SMILES string | [OH-].[K+] |
| vapor pressure | 1 mmHg ( 719 °C) |
| Application: | Redi-Dri™  is an innovative packaging product line that helps eliminate clumping material by adding extra packaging process steps without any chemical additives, anti-clumping agents, or hydrophobic compounds. Redi-Dri™ offers a more convenient and safer way to handle the products. |
| Application: | Potassium hydroxide may be used in the following processes: • Conversion of nitriles to amide in tert-butanol. • Cross-coupling of aryl halides with different sulfur-, oxygen- and nitrogen-based nucleophiles in dimethyl sulfoxide. • As an activator for the preparation of activated carbons from corn cobs. • As a base for the N-alkylation of nitrogen heterocycles in polyethylene glycol-ether solvents. • Synthesis of (S)-1-(4-benzyl-2-thioxothi • To catalyze the polymerization of propylene oxide. |
| General description: | Potassium hydroxide is an inorganic salt mainly used as a precursor to synthesize other potassium compounds such as potassium acetate, potassium bicarbonate and potassium carbonate. On a commercial scale, it is synthesized by the electrolysis of potassium chloride. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Symbol |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H290 - H302 - H314 |
| Precautionary statements | P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥85% |
| mp | 361 °C (lit.) |