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Merck

1.04938

Supelco

Potassium chloride

99.999 Suprapur®

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About This Item

Linear Formula:
KCl
CAS Number:
Molecular Weight:
74.55
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-211-8
NACRES:
NB.21

grade:
for inorganic trace analysis
Assay:
99.999%
form:
solid
solubility:
347 g/L
Pricing and availability is not currently available.

grade

for inorganic trace analysis

Quality Level

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.)

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This Item
1.0493660130P4504
solubility

347 g/L

solubility

347 g/L

solubility

-

solubility

-

assay

99.999%

assay

≥99.5% (silver nitrate titration)

assay

≥99.5% (AT)

assay

≥99.0%

Quality Level

100

Quality Level

300

Quality Level

-

Quality Level

-

grade

for inorganic trace analysis

grade

-

grade

-

grade

-

pH

5.5-8.0 (25 °C, 50 g/L in H2O)

pH

5.5-8.0 (25 °C, 50 g/L in H2O)

pH

5.5-8.0 (20 °C, 50 mg/mL in H2O)

pH

5.5-8.5 (20 °C, 50 g/L)

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

Storage Class Code

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’.

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