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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
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
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