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Merck

12636

Chlorure de potassium

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E508, 99-100.5% (AT), ≤0.0001% Al

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About This Item

Formule linéaire :
KCl
Numéro CAS:
7447-40-7
Poids moléculaire :
74.55
NACRES:
NA.21
PubChem Substance ID:
329749782
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
MFCD00011360
assay:
99-100.5% (AT)
form:
powder or crystals
solubility:
water: soluble ((355 g/l at 25 °C (77 °F))

Nom du produit

Chlorure de potassium, puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E508, 99-100.5% (AT), ≤0.0001% Al

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

InChI

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

SMILES string

[Cl-].[K+]

grade

puriss.

assay

99-100.5% (AT)

form

powder or crystals

quality

meets analytical specification of Ph. Eur., BP, USP, FCC, E508

impurities

acidity or alkalinity, complies
 organic volatile impurities, complies (GC)
 residual solvents, complies
≤0.0001% Al
≤0.0005% heavy metals (as Pb)
≤0.003% free acid (as HCl)
≤0.005% free alkali (as KOH)
≤0.02% Mg, alkaline earth metals (as Ca)

loss

≤0.5% loss on drying, 105 °C, 3 h

pH

7

mp

770 °C (lit.)

solubility

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

density

1.98 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤1000 mg/kg
iodide (I-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤1 mg/kg
As: ≤0.5 mg/kg
Ba:, in accordance
Ca: ≤50 mg/kg
Cd: ≤1 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Mg: ≤50 mg/kg
Na: ≤700 mg/kg
Pb: ≤5 mg/kg
Zn: ≤20 mg/kg

suitability

complies for appearance of solution

Quality Level

200

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Catégories apparentées

Application

Peut être utilisé pour la préparation de solutions salines tamponnées au phosphate, et pour l′extraction et la solubilisation de protéines.
Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium slats. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H+) of buffers. From these values temperature dependence of the pH of these buffers was calculated.
Potassium chloride can be used as a fertilizer and as a regenerant to soften water. It has been used a buffer for the separation of major purine metabolites in the heart, using reverse phase ion pair chromatography(RPIPC).

General description

Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.

Classe de stockage

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
BCCN6265
BCCN2977
BCCM6532
BCCL6229
BCCM3695

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Determination of sixteen nucleotides, nucleosides and bases using high-performance liquid chromatography and its application to the study of purine metabolism in hearts for transplantation
Smolenski,T.R, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 527, 414-420 (1990)
McEachern R, et al.
Water Softening with Potassium Chloride: Process, Health, and Environmental Benefits (2009)
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
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)
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
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