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417661

Sigma-Aldrich

Potassium hydroxide solution

45 wt. % in H2O

Linear Formula:
KOH
CAS Number:
Molecular Weight:
56.11
MDL number:
eCl@ss:
38100303
PubChem Substance ID:
NACRES:
NA.21

Quality Level

assay

43.0-47.0 wt. % KOH basis (by HCl, titration)

form

liquid

concentration

45 wt. % in H2O

density

1.456 g/mL at 25 °C

SMILES string

[K+].[O-][H]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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General description

Potassium hydroxide (KOH) solution is a strong alkali widely used in chemical synthesis. Van Slyke apparatus and Hildebrand adsorption technique have been utilized to determine the solubility of oxygen in different concentration of KOH solution.

Application

Potassium hydroxide solution may be used in the following processes:
  • Depolymerization of poly(ethylene terephthalate) (PET) flakes.
  • Synthesis of potassium bicarbonate and potassium carbonate.
  • As an eluent in the nonsuppressor ion chromatography to separate and determine inorganic and organic anions.
  • Saponification of fruit seed oil to determine tocopherols and tocotrienols.

Packaging

500 mL in poly bottle
1, 2 L in poly bottle
18 L in poly drum

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Ledgard J.
The Preparatory Manual of Explosives., 79-79 (2007)
Nonsuppressor ion chromatography of inorganic and organic anions with potassium hydroxide as eluent.
Okada T and Kuwamoto T.
Analytical Chemistry, 55(7), 1001-1004 (1983)
The solubility and diffusion coefficient of oxygen in potassium hydroxide solutions.
Davis RE, et al.
Electrochimica Acta, 12(3), 287-297 (1967)
Kinetics of depolymerization of poly (ethylene terephthalate) in a potassium hydroxide solution.
Wan BZ, et al.
Industrial & Engineering Chemistry Research, 40(2), 509-514 (2001)
Native oils from apple, blackcurrant, raspberry, and strawberry seeds as a source of polyenoic fatty acids, tocochromanols, and phytosterols: a health implication.
Pieszka M, et al.
Journal of Chemistry, 2015 (2015)

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