Potassium hydroxide
SIGALD/06103 - technical, ≥85%, powder
Synonym: Caustic potash
CAS Number: 1310-58-3
Empirical Formula (Hill Notation): HKO
Molecular Weight: 56.11
EC Number: 215-181-3
MDL Number: MFCD00003553
Linear Formula: KOH
Product Type: Chemical
| anion traces | chloride (Cl-): ≤1000 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | ≥85% |
| cation traces | Fe: ≤20 mg/kg |
| form | powder |
| grade | technical |
| impurities | ≤0.002% heavy metals (as Pb) |
| ≤1.0% 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+] |
| vapor pressure | 1 mmHg ( 719 °C) |
| Application: | Potassium hydroxide can be used: • To prepare KOH treated powder activated carbon, which is used as a catalyst for the synthesis of CNT (carbon nano tube) using chemical vapor deposition (CVD) method. • As a base in the intramolecular N-arylation of urea′s to form benzimidazol-2-ones. • As a catalyst for the synthesis of khellactone-type compounds (10-aryl substituted-9,10-dihydrop |
| General description: | Potassium hydroxide is an inorganic compound with the chemical formula KOH. It is a strong base and is commonly known as caustic potash. Caustic potash is mainly used for making potassium salts, acid-base titrations, and organic synthesis. Furthermore, KOH can be used as an electrolyte in some fuel cells and alkaline batteries. Potassium hydroxide readily reacts with acids. It is used in various reactions such as nucleophilic, addition, and basic hydrolysis reactions. Additionally, it is employed as a catalyst for aldol-type reactions. |
| Symbol |   GHS05,GHS07 |
| 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.) |
| UNSPSC | 12352106 |