Skip to Content
Merck

1.05545

Potassium hydroxide solution

47%, for analysis EMSURE®

Synonym(s):

KOH Solution 47%

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

UNSPSC Code:
12352305
NACRES:
NA.21
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Potassium hydroxide solution 47%, for analysis EMSURE®

product line

EMSURE®

form

liquid

concentration

46.0-48.0% KOH

impurities

≤0.0001% As (Arsenic)
≤0.0003% Total nitrogen (N)
≤0.0005% Ca (Calcium)
≤0.0005% Cu (Copper)
≤0.0005% Fe (Iron)
≤0.0005% Heavy metals (as Pb)
≤0.0005% Mg (Magnesium)
≤0.0005% Ni (Nickel)
≤0.0005% Pb (Lead)
≤0.0005% Phosphate (PO4)
≤0.0005% Zn (Zinc)
≤0.001% Al (Aluminium)
≤0.002% Sulfate (SO4)
≤0.004% Chloride (Cl)
≤1.0% Carbonate (as K2CO3)

pH

>13.5 (20 °C in H2O)

storage temp.

2-30°C

Quality Level

Analysis Note

Assay (acidimetric): 46.0 - 48.0 %
Carbonate (as K₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 0.004 %
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.002 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.001 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.0005 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service