Potassium Hydroxide
Potassium Hydroxide Solution, 45% w/w (Certified), Fisher Chemical™ 
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide (Pellets/Certified ACS), Fisher Chemical™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 0.1N (In Isopropanol/Certified), Fisher Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 0.1N (N/10) (In Methanol/Certified), Fisher Chemical™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide (Flakes/Technical), Fisher Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 1N (Certified), Fisher Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide (Pellets/NF/FCC), Fisher Chemical™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 0.5N (N/2) (In Methanol/Certified), Fisher Chemical™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, DILUT-IT™ Analytical Concentrate, 1N, 1 equiv. = 56.11g KOH, J.T. Baker™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 0.1N (N/10) (Certified), Fisher Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, 45% (w/w) Solution, BAKER ANALYZED™ Reagent, J.T. Baker™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, in Ethanol, Certified, 0.500N ±0.005N (0.5M) , LabChem™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium hydroxide SMILES: [OH-].[K+]
Potassium hydroxide, 99.98%, (trace metal basis), pellets, Thermo Scientific Chemicals
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution
Potassium hydroxide, 50% w/v aq. soln., Thermo Scientific Chemicals
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, 0.1N Volumetric Solution, BAKER ANALYZED™ Reagent, J.T. Baker™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, 0.01 N Solution, Spectrum™ Chemical
CAS: 1310-58-3
Potassium Hydroxide, 50% (w/v), Suitable for Orsat Gas Analysis, Ricca Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Hydrate, TraceSELECT™, ≥99.995% (metals basis), Honeywell™ Fluka™
Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution
Potassium Hydroxide, 10.0 N Solution, Spectrum™ Chemical
CAS: 1310-58-3
Potassium Hydroxide, 0.5N in Ethanol Volumetric Solution, the titer found falls within the range 0.980mg to 1.020mg CaCO3/mL, BAKER ANALYZED™ Reagent, J.T. Baker™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium hydroxide, 45% w/v aq. soln., Thermo Scientific Chemicals
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium hydroxide, pellets, 85%, Thermo Scientific Chemicals
CAS: 1310-58-3 MDL Number: MFCD00003553 Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution
Potassium hydroxide, ca. 85%, extra pure, flakes, Thermo Scientific Chemicals
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, 0.500 N (N/2) in Methanol, Ricca Chemical
CAS: 1310-58-3 PubChem CID: 14797 ChEBI: CHEBI:32035
Potassium Hydroxide, Certified, 50.0% (w/v) ±0.5%, LabChem™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide Solution, 1N (In Methanol/Certified), Fisher Chemical
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide, Certified, 0.500N ±0.003N (0.5M), LabChem™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium hydroxide concentrate, For 1L standard solution, 1.0 M KOH (1.0N), Honeywell Fluka™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium Hydroxide ACS AR Pellets, Macron Fine Chemicals™
CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.105 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: caswell no. 693, caustic potash, hydroxyde de potassium, potash lye, potassa, potasse caustique, potassium hydrate, potassium hydroxide, potassium hydroxide k oh, potassium hydroxide solution PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium;hydroxide SMILES: [OH-].[K+]
Potassium hydroxide (KOH), CAS 1310-58-3, is a colorless, odorless liquid widely used in both industrial and domestic uses. Also known as caustic potash, potassium hydroxide is a strong base as well as a precursor to numerous potassium compounds and liquid soaps.
Extremely corrosive in nature, potassium hydroxide is highly reactive towards acids. On a large scale, it is prepared through the chloralkali process. Available in multiple grades, potassium hydroxide can be used interchangeably with sodium hydroxide (NaOH), although NaOH is preferred in industrial applications because of its lower cost.
Potassium hydroxide is commonly used to manufacture soft and liquid soaps by saponification. Chemical manufacturing, fertilizer production, petroleum refining, and cleaning solutions also rely on potassium hydroxide. In the laboratory, many potassium salts, carbonate, cyanide, permanganate, phosphate, and various silicates are prepared by neutralization reactions involving KOH. A strong alkali, potassium hydroxide is available in both liquid and dry forms.
Common uses of potassium hydroxide are:
- As cleaning agent in the production of liquid soaps and drain cleaners
- In the production of alkaline batteries
- As a chemical intermediate for dyes, pharmaceuticals, and photographic chemicals
A strong and corrosive base, potassium hydroxide can cause serious injury to skin and eyes through absorption. Ingestion and inhalation should also be avoided. To avoid prolonged, damaging exposure to the chemical, workers should wear proper personal protective equipment (PPE) and should handle the chemical in a fume hood. Potassium hydroxide is air sensitive and should be stored in a tightly closed container away from strong acids, strong oxidizing agents, and organic materials.