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60128

Sigma-Aldrich

Potassium chloride

BioUltra, for molecular biology, ≥99.5% (AT)

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Synonym(s):
KCl
Linear Formula:
KCl
CAS Number:
Molecular Weight:
74.55
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.26

grade

for molecular biology

Quality Level

product line

BioUltra

assay

≥99.5% (AT)

form

solid

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤0.001% total nitrogen (N)

loss

≤0.2% loss on drying, 110 °C

pH

5.0-8.0 (25 °C, 1 M in H2O)

mp

770 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤700 mg/kg
iodide (I-): ≤20 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤30 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤10 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
Li: ≤5 mg/kg
Mg: ≤10 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤200 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

SMILES string

[Cl-].[K+]

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

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1 of 4

This Item
P9541P93331.04935
Potassium chloride BioUltra, for molecular biology, ≥99.5% (AT)

60128

Potassium chloride

Premium Grade
Potassium chloride for molecular biology, ≥99.0%

P9541

Potassium chloride

-
Potassium chloride BioXtra, ≥99.0%

P9333

Potassium chloride

Premium Grade
Potassium chloride EMPROVE® ESSENTIAL, Ph. Eur., BP, JP, USP, FCC, E 508

1.04935

Potassium chloride

-
solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

-

solubility

H2O: 1 M, clear, colorless

solubility

347 g/L

assay

≥99.5% (AT)

assay

≥99.0%

assay

≥99.0%

assay

-

grade

for molecular biology

grade

for molecular biology

grade

-

grade

-

mp

770 °C (lit.)

mp

770 °C (lit.)

mp

770 °C (lit.)

mp

770 °C (lit.)

cation traces

Al: ≤5 mg/kg, Ba: ≤10 mg/kg, Ca: ≤50 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤200 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤0.1 mg/kg, Cd: ≤5 mg/kg, Fe: ≤2 mg/kg, Mo: ≤5 mg/kg, Sr: ≤5 mg/kg, Bi: ≤5 mg/kg, Mg: ≤10 mg/kg, Cr: ≤5 mg/kg, Ni: ≤5 mg/kg

cation traces

Fe: ≤3 ppm, heavy metals (as Pb): ≤5 ppm

cation traces

Al: ≤0.0005%, Ca: ≤0.005%, Cu: ≤0.0005%, Fe: ≤0.0005%, Mg: ≤0.001%, NH4+: ≤0.05%, Na: ≤0.02%, Pb: ≤0.001%, Zn: ≤0.0005%

cation traces

-

application

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

Other Notes

In DpnI/MboI assay for detection of methylation changes in DNA replication

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Bacterial nucleoid-associated proteins, such as H-NS-like proteins in Enterobacteriaceae, are abundant DNA-binding proteins that function in chromosomal DNA organization and gene transcription regulation. The Mycobacterium tuberculosis Lsr2 protein has been proposed to be the first identified H-NS analogue in Gram-positive
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