Potassium chloride

Name: Potassium chloride
Brand: MM

for analysis (<= 0.005% Br) EMSURE^® ACS,ISO,Reag. Ph Eur

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About This Item

Linear Formula:

KCl

CAS Number:

7447-40-7

Molecular Weight:

74.55

MDL number:

MFCD00011360

UNSPSC Code:

12352302

EC Index Number:

231-211-8

NACRES:

NA.21

Assay:

99-100.5% dry basis (silver nitrate titration)
99.5-100.5% (silver nitrate titration)

Grade:

ACS reagent

Form:

solid

Solubility:

water: soluble ((355 g/l at 25 °C (77 °F))

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grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

Assay

99-100.5% dry basis (silver nitrate titration)
99.5-100.5% (silver nitrate titration)

form

solid

potency

2600 mg/kg LD₅₀, oral (Rat)

impurities

≤0.005% Insoluble matter

loss

≤1% loss on drying, 105°C

pH

5.5-8.0 (25 °C, 50 g/L in H₂O)

bp

1413 °C/1013 hPa

mp

770 °C (lit.)

solubility

water: soluble ((355 g/l at 25 °C (77 °F))

density

1.98 g/mL at 25 °C (lit.)

bulk density

1000 kg/m³

anion traces

bromide (Br^-): ≤0.005%
chlorate, nitrate (as NO₃^-): ≤0.003%
iodide (I^-): ≤0.002%passes test
phosphate (PO₄^3-): ≤0.0005%
sulfate (SO₄^2-): ≤0.001%

cation traces

Ba:, passes test
Ca: ≤0.001%
Fe: ≤0.0002%
Mg: ≤0.0005%
Mg: ≤0.02% (alkaline earth metals (as Ca))
N: ≤0.001%
Na: ≤0.005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

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Related Categories

Lab Chemicals

Salts

Application

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

Analysis Note

Assay (argentometric): 99.5 - 100.5 %
Assay (argentometric; calculated on dried substance): 99.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water): 5.5 - 8.0
Acidity or alkalinity: passes test
Bromide (Br): ≤ 0.005 %
Chlorate and Nitrate (as NO₃): ≤ 0.003 %
Iodide (I):
≤ 0.002 %
: passes test
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.001 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Ba (Barium): passes test
Ca (Calcium): ≤ 0.001 %
Fe (Iron): ≤ 0.0002 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Magnesium and alkaline-earth metals (as Ca): ≤ 0.02 %
Loss on Drying (105°C): ≤ 1.0 %
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

EMSURE 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)