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Merck
CN

06005

Potassium hydroxide

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

Synonym(s):

Caustic potash

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About This Item

Linear Formula:
KOH
CAS Number:
Molecular Weight:
56.11
UNSPSC Code:
12352106
eCl@ss:
38100303
PubChem Substance ID:
EC Number:
215-181-3
NACRES:
NA.21
MDL number:
Assay:
85-100.5%
Form:
pellets
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vapor pressure

1 mmHg ( 719 °C)

Quality Level

grade

puriss.

assay

85-100.5%

form

pellets

quality

meets analytical specification of Ph. Eur., BP

impurities

residual solvents, complies, ≤0.0005% heavy metals (as Pb), ≤0.0005% total nitrogen (N), ≤1% K2CO3

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, phosphate (PO43-): ≤10 mg/kg, silicate (as SiO2): ≤100 mg/kg, sulfate (SO42-): ≤20 mg/kg

cation traces

Al: ≤10 mg/kg, As: ≤3 mg/kg, Ca: ≤20 mg/kg, Fe: ≤10 mg/kg, Na: ≤1%

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 is an inorganic compound commonly known as caustic potash. It is frequently used to neutralize acids and prepare potassium salts of reagents. Additionally, NaOH is also employed in a variety of large-scale applications.

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

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品

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Yuewang Huang et al.
Optics express, 23(5), 6780-6786 (2015-04-04)
We demonstrate a novel technique to fabricate sub-micron silicon nitride waveguides using conventional contact lithography with MEMS-grade photomasks. Potassium hydroxide anisotropic etching of silicon facilitates line reduction and roughness smoothing and is key to the technique. The fabricated waveguides is
Saeid Baroutian et al.
Bioresource technology, 102(2), 1095-1102 (2010-10-05)
In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO2/Al2O3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design
Aldol condensation in gaseous phase by zeolite catalysts.
Wierzchowski PT and Zatorski LW.
Catalysis Letters, 9(5-6), 411-414 (1991)
Rokas Drevinskas et al.
Optics express, 23(2), 1428-1437 (2015-04-04)
Surface texturing is demonstrated by the combination of wet etching and ultrafast laser nanostructuring of silica glass. Using potassium hydroxide (KOH) at room temperature as an etchant of laser modified glass, we show the polarization dependent linear increase in retardance
Kinetics of palm oil transesterification in a batch reactor.
Darnoko D and Cheryan M.
Journal of the American Oil Chemists' Society, 77(12), 1263-1267 (2000)

Global Trade Item Number

SKUGTIN
792152-500ML04061837776670
806187050004027269066833
M73206-500ML04061834061939
806187010004022536389745
M73206-100ML04061837778674
M73206-5ML04061837778681
792152-2L04061832950730
06005-5KG04061834411000
06005-4X5KG04061833635872
06005-6X1KG04061833635889
06005-1KG04061838643049

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