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06005

Sigma-Aldrich

Potassium hydroxide

puriss., meets analytical specification of Ph. Eur., BP, 85-100.5%, pellets

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Synonym(s):
Caustic potash
Linear Formula:
KOH
CAS Number:
Molecular Weight:
56.11
EC Number:
MDL number:
eCl@ss:
38100303
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

1 mmHg ( 719 °C)

Quality Level

grade

puriss.

Assay

85-100.5%

form

pellets

quality

meets analytical specification of Ph. Eur., BP

impurities

residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.0005% total nitrogen (N)
≤1% K2CO3

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
phosphate (PO43-): ≤10 mg/kg
silicate (as SiO2): ≤100 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Al: ≤10 mg/kg
As: ≤3 mg/kg
Ca: ≤20 mg/kg
Fe: ≤10 mg/kg
Na: ≤1%

SMILES string

[OH-].[K+]

InChI

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

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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1 of 4

This Item
306568P5958P1767
Potassium hydroxide puriss., meets analytical specification of Ph. Eur., BP, 85-100.5%, pellets

06005

Potassium hydroxide

Essential Grade
Potassium hydroxide semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)

306568

Potassium hydroxide

-
Potassium hydroxide BioXtra, ≥85% KOH basis

P5958

Potassium hydroxide

-
Potassium hydroxide ≥85% KOH basis, pellets, white

P1767

Potassium hydroxide

-
assay

85-100.5%

assay

99.99% trace metals basis (Purity excludes sodium content.)

assay

≥85% KOH basis

assay

≥85% KOH basis

form

pellets

form

pellets

form

pellets

form

pellets

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

anion traces

chloride (Cl-): ≤50 mg/kg, silicate (as SiO2): ≤100 mg/kg, sulfate (SO42-): ≤20 mg/kg, phosphate (PO43-): ≤10 mg/kg

anion traces

-

anion traces

chloride (Cl-): ≤0.01%, sulfate (SO42-): ≤0.003%

anion traces

-

mp

361 °C (lit.)

mp

361 °C (lit.)

mp

361 °C (lit.)

mp

361 °C (lit.)

General description

Potassium hydroxide is an inorganic compound commonly known as caustic potash. It is frequently used to neutralize acids and prepare potassium salts of reagents. Additionally, NaOH is also employed in a variety of large-scale applications.

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

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Yuewang Huang et al.
Optics express, 23(5), 6780-6786 (2015-04-04)
We demonstrate a novel technique to fabricate sub-micron silicon nitride waveguides using conventional contact lithography with MEMS-grade photomasks. Potassium hydroxide anisotropic etching of silicon facilitates line reduction and roughness smoothing and is key to the technique. The fabricated waveguides is
Saeid Baroutian et al.
Bioresource technology, 102(2), 1095-1102 (2010-10-05)
In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO2/Al2O3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design
Kinetics of palm oil transesterification in a batch reactor.
Darnoko D and Cheryan M.
Journal of the American Oil Chemists' Society, 77(12), 1263-1267 (2000)
Ji-Tai Li et al.
Ultrasonics sonochemistry, 9(5), 237-239 (2002-10-10)
Claisen-Schmidt condensation of acetophenone with aromatic aldehydes catalyzed by pulverized KOH and KF-Al2O3 results chalcones in 52-97% and 83-98% yields respectively in alcoholic solvent under ultrasound irradiation.
Aldol condensation in gaseous phase by zeolite catalysts.
Wierzchowski PT and Zatorski LW.
Catalysis Letters, 9(5-6), 411-414 (1991)

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