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35621 Potassium hydroxide, 50% w/v aq. soln.

CAS Number

Stock No. Size Price ($) Quantity Availability
35621-AP 500ml 38.70
35621-K2 1L 58.10
35621-K7 4L 139.00
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Potassium hydroxide, 50% w/v aq. soln.


Chemical Properties

Formula Weight
Storage & Sensitivity
Ambient temperatures.
Miscible with water and ethanol.


Potassium hydroxide acts as the precursor for most of the soft and liquid soaps, and for numerous potassium-containing chemicals. It is widely used in the manufacture of detergents, fertilizer, rayon, paper, dyestuffs, various drugs, drug intermediates, fine chemicals, and petroleum products. In the field of organic chemistry, potassium hydroxide acts as a base, and is used in the synthesis of several organic compounds. Further it finds application as an electrolyte in alkaline batteries, which are based on nickel-cadmium, nickel-hydrogen and manganese dioxide-zinc.


Incompatible with acids, nitro compounds, alkali metals, magnesium, copper, halogens, azides and anhydrides. Contact with aluminum, tin and zinc liberates hydrogen gas.

Literature References

Aili, D.; Jankova, K.; Li, Q.; Bjerrum, N. J.; Jensen, J. O. The stability of poly(2,2'-(m-phenylene)-5,5'-bibenzimidazole) membranes in aqueous potassium hydroxide. J. Membr. Sci. 2015, 492, 422-429.

Gilliama, R. J.; Graydonb, J. W.; Kirkb, D. W.; Thorpea, S. J. A Review of Specific Conductivities of Potassium hydroxide Solutions for Various Concentrations and Temperatures. Int. J. Hydrogen Energ. 2007, 32 (3), 359-364.

Baroutian, S.; Aroua, M. K.; Raman, A. A. A.; Sulaiman, N. M. N. Potassium Hydroxide Catalyst Supported on Palm Shell Activated Carbon for Transesterification of Palm Oil. Fuel Process. Technol. 2010, 91 (11), 1378-1385.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H314-H335

Harmful if swallowed. Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c

Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Do NOT induce vomiting. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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