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911062

Potassium hydroxide

Name: Potassium hydroxide
Brand: SIAL

free-flowing, Redi-Dri^™, ACS reagent, ≥85%, pellets

Synonym(s):

Caustic potash

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About This Item

Linear Formula:

KOH

CAS Number:

1310-58-3

Molecular Weight:

56.11

UNSPSC Code:

12352320

NACRES:

NA.21

MDL number:

MFCD00003553

Assay:

≥85%

Form:

pellets

Grade:

ACS reagent

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Properties

grade

ACS reagent

agency

suitable for EPA 1621, suitable for EPA 1633, suitable for SM 5210

vapor pressure

1 mmHg ( 719 °C)

product line

Redi-Dri^™

assay

≥85%

form

pellets

quality

free-flowing

impurities

≤0.001% N compounds, ≤2.0% K₂CO₃, 10-15% water

mp

361 °C (lit.)

anion traces

chloride (Cl^-): ≤0.01%, phosphate (PO₄^3-): ≤5 ppm, sulfate (SO₄^2-): ≤0.003%

cation traces

Ca: ≤0.005%, Fe: ≤0.001%, Mg: ≤0.002%, Na: ≤0.05%, Ni: ≤0.001%, heavy metals: ≤0.001% (by ICP-OES)

SMILES string

[OH-].[K+]

application(s)

PFAS testing

InChI

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

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

Description

General description

Potassium hydroxide is an inorganic salt mainly used as a precursor to synthesize other potassium compounds such as potassium acetate, potassium bicarbonate and potassium carbonate. On a commercial scale, it is synthesized by the electrolysis of potassium chloride.

Application

Potassium hydroxide may be used in the following processes:

Conversion of nitriles to amide in tert-butanol.
Cross-coupling of aryl halides with different sulfur-, oxygen- and nitrogen-based nucleophiles in dimethyl sulfoxide.
As an activator for the preparation of activated carbons from corn cobs.
As a base for the N-alkylation of nitrogen heterocycles in polyethylene glycol-ether solvents.
Synthesis of (S)-1-(4-benzyl-2-thioxothiazolidin-3-yl)propan-1-one from (S)-phenylalaninol.
To catalyze the polymerization of propylene oxide.

Redi-Dri^™ is an innovative packaging product line that helps eliminate clumping material by adding extra packaging process steps without any chemical additives, anti-clumping agents, or hydrophobic compounds. Redi-Dri^™ offers a more convenient and safer way to handle the products.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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Pictograms

GHS05,GHS07

Signal Word

Danger

Hazard Codes

H290,H302,H314

Precautionary Statements

P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)