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911062

Potassium hydroxide

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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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 (PO43-): ≤5 ppm, sulfate (SO42-): ≤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

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

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.
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.

Legal Information

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

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

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

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

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