Potassium hydroxide
SIGALD/221473 - ACS reagent, ≥85%, pellets
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 | suitable for EPA 1621 |
suitable for EPA 1633 | |
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.) |
pH | ~13.5 (25 °C, 5.6 g/L) |
Quality Level | 200 ![]() |
SMILES string | [OH-].[K+] |
storage temp. | room temp |
vapor pressure | 1 mmHg ( 719 °C) |
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. |
Packaging: | 1, 2.5, 4×2.5 kg in poly bottle |
Packaging: | 12 kg in fiber drum |
Packaging: | 25, 500, 6×500 g in poly bottle |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H290 - H302 - H314 |
Precautionary statements | P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
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.) |
Storage Temp. | room temp |
UNSPSC | 12352106 |