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Merck
CN

PX1405

Potassium chloride

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

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About This Item

Linear Formula:
KCl
CAS Number:
7447-40-7
Molecular Weight:
74.55
UNSPSC Code:
12352302
EC Index Number:
231-211-8
MDL number:
MFCD00011360
Assay:
99.0-100.5% (silver nitrate titration)
Grade:
ACS reagent
Form:
crystals

Key Documents

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InChI

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

SMILES string

[Cl-].[K+]

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

grade

ACS reagent

agency

meets USP/NF

assay

99.0-100.5% (silver nitrate titration)

form

crystals

impurities

≤0.005% Insoluble matter

color

white

pH

5.5-8.0 (25 °C, 50 g/L in H2O)

bp

1413 °C/1013 hPa

mp

770 °C (lit.)

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤0.01%, chlorate, nitrate (as NO3-): ≤0.003%, iodide (I-): ≤0.002%, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.001%

cation traces

Ba: ≤0.001%, passes test, Ca: ≤0.002%, Fe: ≤3 ppm, Mg: ≤0.001%, Na: ≤0.005%, heavy metals (as Pb): ≤5 ppm

shipped in

ambient

storage temp.

room temp

Quality Level

200

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Application

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.
Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay (argentometric)99.0-100.5%Barium (Ba)Passes test (Limit about 0.001%)Bromide (Br)0.01% maxCalcium (Ca)0.002% maxChlorate and nitrate (as NO3)0.003% maxColorWhiteFormCrystalsHeavy metals (as Pb)5ppm maxInsoluble matter0.005% maxIodide (I)0.002% maxIron (Fe)3ppm maxMagnesium (Mg)0.001% maxPhosphate (PO4)5ppm maxSodium (Na)0.005% maxSulfate (SO4)0.001% maxpH of a 5% solution at 25°C5.4-8.6

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

Regulatory Information

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