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12636

塩化カリウム

Name: 塩化カリウム
Brand: SIGALD

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

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この商品について

化学式:

KCl

CAS番号:

7447-40-7

分子量:

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))

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特性

grade

puriss.

Quality Level

200

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

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 (SO₄^2-): ≤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

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

詳細

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.

Application

リン酸緩衝生理食塩水の調製及びタンパク質の抽出や可溶化に用いられます。

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).

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保管分類

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

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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)

Enthalpy and heat capacity changes for the proton dissociation of various buffer components in 0.1 M potassium chloride.

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