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Merck
CN

31248

氯化钾

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

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线性分子式:
KCl
化学文摘社编号:
7447-40-7
分子量:
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

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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

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Application

可用于磷酸盐缓冲液制备，以及蛋白提取和溶解。

Packaging

本品也提供玻璃瓶包装。

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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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
Hanne Sørup Tastesen et al.
Amino acids, 46(7), 1659-1671 (2014-03-25)
High-protein diets induce alterations in metabolism that may prevent diet-induced obesity. However, little is known as to whether different protein sources consumed at normal levels may affect diet-induced obesity and associated co-morbidities. We fed obesity-prone male C57BL/6J mice high-fat, high-sucrose
David A Story et al.
Anesthesiology, 119(3), 569-575 (2013-04-20)
In an incidental finding, during a study of plasma chemistry after crystalloid infusion, participants reported subjective cognitive changes, particularly slower thinking, after saline but not Hartmann's (Ringer's lactate) solution. The authors tested the hypothesis that saline infusion would produce greater
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