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484016

Sigma-Aldrich

Potassium hydroxide

reagent grade, 90%, flakes

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Synonym(s):
Caustic potash
Linear Formula:
KOH
CAS Number:
Molecular Weight:
56.11
EC Number:
MDL number:
eCl@ss:
38100303
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

agency

suitable for EPA 1613
suitable for SM 5210

vapor pressure

1 mmHg ( 719 °C)

assay

90%

form

flakes

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

solubility

water: 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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1 of 4

This Item
061033060360370
Potassium hydroxide reagent grade, 90%, flakes

484016

Potassium hydroxide

Potassium hydroxide technical, ≥85%, powder

06103

Potassium hydroxide

Potassium hydroxide pellets, reag. Ph. Eur., ≥85%

30603

Potassium hydroxide

Potassium hydroxide puriss. p.a., ≥86% (T), pellets

60370

Potassium hydroxide

solubility

water: soluble 1120 g/L

solubility

-

solubility

-

solubility

alcohol: soluble(lit.), water: soluble(lit.)

assay

90%

assay

≥85%

assay

≥85%

assay

≥86% (T)

grade

reagent grade

grade

-

grade

-

grade

-

vapor pressure

1 mmHg ( 719 °C)

vapor pressure

1 mmHg ( 719 °C)

vapor pressure

1 mmHg ( 719 °C)

vapor pressure

1 mmHg ( 719 °C)

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

pH

~13.5 (25 °C, 5.6 g/L)

General description

Potassium hydroxide (KOH) is a hygroscopic, water soluble base synthesized by the electrolysis of potassium chloride solution. It is the raw material for the synthesis of many potassium compounds. KOH reacts with CO2 to form potassium carbonate. This property can be utilized to absorb CO2. It participates as catalyst in aldol condensation reactions. KOH anisotropic etching of silicon is used for the fabrication of sub-micron silicon nitride waveguides using conventional contact lithography. Pulverized KOH may be used for the preparation of chalcones.

Application

Potassium hydroxide (KOH) was used in the following processes:
  • Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC.
  • Preparation of buffer for use in the Investigation of seed fatty acid (FA) composition, protein, oil and sugar content.
  • Stable isotopic profiling study of Caenorhabditis elegans.
Potassium hydroxide may be employed as an etchant for the laser modified glass. In combination with tellurium powder, it mediates the quantitative pinacolization of aromatic carbonyl compounds.

pictograms

CorrosionExclamation mark

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_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Potassium hydroxide puriss., meets analytical specification of Ph. Eur., BP, 85-100.5%, pellets

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SAFC

1.05032

Potassium hydroxide

Marni J Falk et al.
Journal of visualized experiments : JoVE, (48)(48), doi:10-doi:10 (2011-03-16)
Stable isotopic profiling has long permitted sensitive investigations of the metabolic consequences of genetic mutations and/or pharmacologic therapies in cellular and mammalian models. Here, we describe detailed methods to perform stable isotopic profiling of intermediary metabolism and metabolic flux in
Seed Storage Reserve Analysis
van Erp H, et al.
Bio-protocol, 4(20), e1263-e1263 (2014)
Khan, R.H. et al.
Synthetic Communications, 27, 2193-2193 (1997)
Eagleson M.
Concise Encyclopedia Chemistry, 888-888 (1994)
Beatriz Martín-García et al.
Small (Weinheim an der Bergstrasse, Germany), 15(52), e1904670-e1904670 (2019-12-04)
Among the large family of transition metal dichalcogenides, recently ReS2 has stood out due to its nearly layer-independent optoelectronic and physicochemical properties related to its 1T distorted octahedral structure. This structure leads to strong in-plane anisotropy, and the presence of

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