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60130

氯化钾

puriss. p.a., ≥99.5% (AT)

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線性公式:
KCl
CAS 編號:
分子量::
74.55
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
Assay:
≥99.5% (AT)
Form:
powder or crystals
Solubility:
water: soluble ((355 g/l at 25 °C (77 °F))
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grade

puriss. p.a.

Quality Level

assay

≥99.5% (AT)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)

pH

5.5-8.0 (20 °C, 50 mg/mL in H2O)

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-): ≤700 mg/kg, iodide (I-): ≤20 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤30 mg/kg

cation traces

Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤2 mg/kg, Mg: ≤10 mg/kg, Mn: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

[Cl-].[K+]

InChI

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

InChI key

WCUXLLCKKVVCTQ-UHFFFAOYSA-M

General description

氯化钾属碱金属卤化物,为无色结晶盐。它在水中的溶解度与温度的升高成正比。它可以从氢氧化钾,通过中和反应与盐酸。已经描述了氯化钾在水中的溶液的焓的量热估计。

Application

可用于磷酸盐缓冲液制备,以及蛋白提取和溶解。
氯化钾可用于制备肥料、氢氧化钾、碳酸钾和其他钾盐。可用于缓冲液去质子化(质子 H + 损失)过程中焓和热容值的量热测定。根据这些值,计算这些缓冲液 pH 值的温度依赖性。[1]

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本產品
12636P9333P4504
form

powder or crystals

form

powder or crystals

form

crystalline powder

form

powder or crystals

solubility

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

solubility

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

solubility

H2O: 1 M, clear, colorless

solubility

water: soluble

assay

≥99.5% (AT)

assay

99-100.5% (AT)

assay

≥99.0%

assay

≥99.0%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

grade

puriss. p.a.

grade

puriss.

grade

-

grade

-

pH

5.5-8.0 (20 °C, 50 mg/mL in H2O)

pH

7

pH

-

pH

5.5-8.5 (20 °C, 50 g/L)


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存儲類別/等級

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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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
Jules D P Valentin et al.
Journal of colloid and interface science, 552, 247-257 (2019-05-28)
Many materials used in the medical settings such as catheters and contact lenses as well as most biological tissues are not purely elastic, but rather viscoelastic. While substrate elasticity has been investigated for its influence on bacterial adhesion, the impact



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