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Merck

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 Segment

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

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.


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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



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