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60130

氯化钾

Name: 氯化钾
Brand: SIGALD

puriss. p.a., ≥99.5% (AT)

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关于此项目

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:

329758757

UNSPSC Code:

12352302

EC Number:

231-211-8

MDL number:

MFCD00011360

Assay:

≥99.5% (AT)

Form:

powder or crystals

Solubility:

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

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属性

grade

puriss. p.a.

Quality Level

200

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 (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤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

说明

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

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。

可用于磷酸盐缓冲液制备，以及蛋白提取和溶解。

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存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

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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

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)

Substrate viscosity plays an important role in bacterial adhesion under fluid flow.

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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全球贸易项目编号

货号	GTIN
60130-1KG	04061826714805
60130-250G	04061832659411
60130-5KG	04061832993881