Skip to Content
Merck

Key Documents

View All Documentation

1.04938

Potassium chloride

99.999 Suprapur®

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
KCl
CAS Number:
7447-40-7
Molecular Weight:
74.55
NACRES:
NB.21
EC Index Number:
231-211-8
UNSPSC Code:
12352302
MDL number:
MFCD00011360
Assay:
99.999%
Form:
solid
Solubility:
347 g/L
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

100

description

for inorganic trace analysis

assay

99.999%

form

solid

potency

2600 mg/kg LD50, oral (Rat)

pH

5.5-8.0 (25 °C, 50 g/L in H2O)

bp

1413 °C/1013 hPa

mp

770 °C (lit.)

solubility

347 g/L

density

1.98 g/mL at 25 °C (lit.)

bulk density

1000 kg/m3

anion traces

phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤10 ppm, (Total nitrogen (N) ≤ 10 ppm)

cation traces

Al: ≤0.010 ppm, Ba: ≤1.0 ppm, Ca: ≤0.10 ppm, Cd: ≤0.005 ppm, Ce: ≤0.010 ppm, Co: ≤0.005 ppm, Cr: ≤0.010 ppm, Cu: ≤0.005 ppm, Eu: ≤0.005 ppm, Fe: ≤0.01 ppm, La: ≤0.005 ppm, Li: ≤0.4 ppm, Mg: ≤0.05 ppm, Mn: ≤0.010 ppm, Na: ≤5.0 ppm, Ni: ≤0.010 ppm, Pb: ≤0.010 ppm, Sc: ≤0.005 ppm, Sm: ≤0.005 ppm, Sr: ≤0.10 ppm, Tl: ≤0.01 ppm, Y: ≤0.005 ppm, Yb: ≤0.005 ppm, Zn: ≤0.020 ppm

storage temp.

2-30°C

SMILES string

[Cl-].[K+]

InChI

1S/ClH.K/h1H;/q;+1/p-1

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Application

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (argentometric): ≥ 99.5 %
Phosphate (PO₄): ≤ 5 ppm
Sulfate (SO₄): ≤ 10 ppm
Total nitrogen (N): ≤ 10 ppm
Al (Aluminium): ≤ 0.010 ppm
Ba (Barium): ≤ 1.0 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.005 ppm
Eu (Europium): ≤ 0.005 ppm
Fe (Iron): ≤ 0.01 ppm
La (Lanthanum): ≤ 0.005 ppm
Li (Lithium): ≤ 0.4 ppm
Mg (Magnesium): ≤ 0.05 ppm
Mn (Manganese): ≤ 0.010 ppm
Na (Sodium): ≤ 5.0 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Sc (Scandium): ≤ 0.005 ppm
Sm (Samarium): ≤ 0.005 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.005 ppm
Yb (Ytterbium): ≤ 0.005 ppm
Zn (Zinc): ≤ 0.020 ppm

Legal Information

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

Still not finding the right product?

Explore all of our products under Potassium chloride

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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