Skip to Content
Merck
CN

31248

Potassium chloride

puriss. p.a., reag. ISO, reag. Ph. Eur., 99.5-100.5%

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
KCl
CAS Number:
7447-40-7
Molecular Weight:
74.55
NACRES:
NA.21
PubChem Substance ID:
329753698
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
MFCD00011360
Assay:
99.5-100.5%
Form:
crystalline powder

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

InChI

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

SMILES string

[Cl-].[K+]

agency

USP/NF, reag. ISO, reag. Ph. Eur.

grade

puriss. p.a.

assay

99.5-100.5%

form

crystalline powder

impurities

acidic or alkalic reac. substances, complies, ≤0.0005% heavy metals (as Pb), ≤0.001% total nitrogen (N), ≤0.003% free acid (as HCl), ≤0.003% free alkali (as KOH), ≤0.005% water insolubles

loss

≤0.2% loss on drying, 130 °C

pH

5-8 (20 °C, 5%)

mp

770 °C (lit.)

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤100 mg/kg, iodide (I-): ≤20 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤20 mg/kg

cation traces

Al: ≤1 mg/kg, Ba: ≤10 mg/kg, Ca: ≤10 mg/kg, Fe: ≤2 mg/kg, Mg: ≤5 mg/kg, Na: ≤200 mg/kg

suitability

corresponds for appearance of solution

Looking for similar products? Visit Product Comparison Guide

Application

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

Packaging

This product is also available in glass bottles.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The use of potassium chloride and tris (hydroxymethyl) aminomethane as standard substances for solution calorimetry.
Rychly R and Pekarek V.
The Journal of Chemical Thermodynamics, 9(4), 391-396 (1977)
H Fukada et al.
Proteins, 33(2), 159-166 (1998-10-21)
Enthalpy and heat capacity changes for the deprotonation of 18 buffers were calorimetrically determined in 0.1 M potassium chloride at temperatures ranging from 5 to 45 degrees C. The values of the dissociation constant were also determined by means of
Yuanyuan Qu et al.
Nucleic acids research, 41(10), 5263-5272 (2013-04-13)
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
Masatoshi Takagaki et al.
Experimental neurology, 252, 12-17 (2013-11-20)
Sedatives in the neurointensive care unit can strongly influence patients' risks of developing secondary brain damage. In particular, isoflurane, a volatile anesthetic, has been recently re-introduced to the neurointensive care unit, and first clinical studies suggest beneficial effects due to
Garrett A Kaas et al.
Neuron, 79(6), 1086-1093 (2013-09-21)
Dynamic changes in 5-methylcytosine (5mC) have been implicated in the regulation of gene expression critical for consolidation of memory. However, little is known about how these changes in 5mC are regulated in the adult brain. The enzyme methylcytosine dioxygenase TET1
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service