Skip to Content
Merck

Key Documents

View All Documentation

306568

Potassium hydroxide

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

Synonym(s):

Caustic potash

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
KOH
CAS Number:
1310-58-3
Molecular Weight:
56.11
PubChem Substance ID:
329753558
eCl@ss:
38100303
UNSPSC Code:
12352106
NACRES:
NA.21
EC Number:
215-181-3
MDL number:
MFCD00003553
Assay:
99.99% trace metals basis (Purity excludes sodium content.)
Grade:
semiconductor grade
Form:
pellets
Solubility:
water: soluble
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

semiconductor grade

Quality Level

200

vapor pressure

1 mmHg ( 719 °C)

assay

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

form

pellets

composition

KOH, >85.0%

impurities

15% water

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

solubility

water: soluble

cation traces

Na: ≤500.0 ppm

SMILES string

[OH-].[K+]

InChI

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

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

General description

Potassium hydroxide (KOH), also known as caustic potash. It is used as a significant precursor to many potassium containing products.

Application

In combination with tellurium powder, mediates the quantitative pinacolization of aromatic carbonyl compounds.
Potassium hydroxide can be used:
  • As a base in the synthesis of imines, starting from amines and alcohols.
  • As a base in β-alkylation of secondary alcohols with primary alcohols without any transition metal catalyst.
  • In combination with aluminium for pinacolization of aromatic aldehydes and reduction of hindered ketones.
  • As a precipitating agent in the synthesis of MnZn ferrites nanoparticles (Mn0.8Zn0.2Fe2O4 ferrite nanoparticles) by modified hydrothermal method.

Still not finding the right product?

Explore all of our products under Potassium hydroxide

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

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 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

306568-500G:4.548173132471E12 + 306568-100G:4.548173132464E12

jan

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKDB0977
MKCX4655
MKCW3339
MKCS8606
MKCR9566

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Qilun Wang et al.
Nature communications, 11(1), 4246-4246 (2020-08-28)
Water electrolysis offers a promising energy conversion and storage technology for mitigating the global energy and environmental crisis, but there still lack highly efficient and pH-universal electrocatalysts to boost the sluggish kinetics for both cathodic hydrogen evolution reaction (HER) and
Ian T McCrum et al.
The journal of physical chemistry. C, Nanomaterials and interfaces, 122(29), 16756-16764 (2018-09-28)
The effect of the alkali-metal cation (Li+, Na+, K+, and Cs+) on the non-Nernstian pH shift of the Pt(554) and Pt(533) step-associated voltammetric peak is elucidated over a wide pH window (1-13), through computation and experiment. In conjunction with our
Haochen Zhang et al.
Nature communications, 10(1), 3340-3340 (2019-07-28)
Electroreduction of carbon dioxide to hydrocarbons and oxygenates on copper involves reduction to a carbon monoxide adsorbate followed by further transformation to hydrocarbons and oxygenates. Simultaneous improvement of these processes over a single reactive site is challenging due to the
View All Related Papers