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221473

Potassium hydroxide

Name: Potassium hydroxide
Brand: SIGALD

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

PubChem Substance ID:

329752271

eCl@ss:

38100303

UNSPSC Code:

12352106

NACRES:

NA.21

EC Number:

215-181-3

MDL number:

MFCD00003553

Assay:

≥85%

Grade:

ACS reagent

Form:

pellets

Solubility:

water: soluble

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Properties

grade

ACS reagent

Quality Level

200

agency

suitable for EPA 1621, suitable for EPA 1633

vapor pressure

1 mmHg ( 719 °C)

assay

≥85%

form

pellets

impurities

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

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

solubility

water: soluble

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)

application(s)

PFAS testing

storage temp.

room temp

SMILES string

[OH-].[K+]

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.

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pictograms

GHS05,GHS07

signalword

Danger

hcodes

H290,H302,H314

pcodes

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

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品

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Articles

Analysis of Vitamins D2 and D3 in Infant Milk Powder

Simultaneous LC-MS/MS determination of vitamins D₂ and D₃ in infant milk powder meeting GB 5009.296-2023 criteria for accuracy and sensitivity.

Preparation of high surface area activated carbon from corn by chemical activation using potassium hydroxide

Bagheri N & Abedi J

Chemical Engineering Research and Design, 87(8), 1059-1064 (2009)

A study of the polymerization of propylene oxide catalyzed by anhydrous potassium hydroxide

Steiner EC, et al

Journal of the American Chemical Society, 86(21), 4678-4686 (1964)

Ledgard J

The Preparatory Manual of Explosives., 79-79 (2009)

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Global Trade Item Number

SKU	GTIN
221473-25G	04061838777379
221473-3.5KG	04061833638507
221473-6X500G	04061833636541
221473-12KG	04061838777355
221473-1KG	04061835561728
221473-2.5KG	04061838777362
221473-4X2.5KG	04061838777386
221473-500G	04061838777393