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Sigma-Aldrich

Potassium hydroxide

anhydrous, ≥99.95% trace metals basis

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Synonym(s):
Caustic potash
Linear Formula:
KOH
CAS Number:
1310-58-3
Molecular Weight:
56.11
EC Number:
215-181-3
MDL number:
MFCD00003553
PubChem Substance ID:
329766684
NACRES:
NA.23

grade

anhydrous

Quality Level

100

vapor pressure

1 mmHg ( 719 °C)

Assay

≥99.95% trace metals basis

form

crystals or chunks
powder and chunks
powder or crystals

impurities

≤300.0 ppm Trace Metal Analysis

mp

361 °C (lit.)

solubility

H2O: soluble 1120 g/L

SMILES string

[OH-].[K+]

InChI

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

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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General description

Potassium hydroxide (KOH) is also known as caustic potash. It is a strong alkali or a solid base compound that can be used in a variety of industrial applications. It finds its usage in the production of soaps, cleaners and detergents.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290 - H302 - H314

Hazard Classifications

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

Storage Class Code

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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