P3911
氯化钾
ACS reagent, 99.0-100.5%
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线性分子式:
KCl
化学文摘社编号:
分子量:
74.55
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-211-8
MDL number:
Assay:
99.0-100.5%
Grade:
ACS reagent
Form:
powder
Solubility:
water: soluble (355 g/l at 25 °C (77 °F))
InChI key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
InChI
1S/ClH.K/h1H;/q;+1/p-1
SMILES string
[Cl-].[K+]
grade
ACS reagent
assay
99.0-100.5%
form
powder
impurities
≤0.005% Insoluble matter
pH
5.4-8.6 (25 °C, 5% in solution)
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-): ≤0.01%, chlorate, nitrate (as NO3-): ≤0.003%, iodide (I-): ≤0.002%, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.001%
cation traces
Ba:, passes test (limit about 0.001%), Ca: ≤0.002%, Fe: ≤3 ppm, Mg: ≤0.001%, Na: ≤0.005%, heavy metals: ≤5 ppm (by ICP-OES )
Quality Level
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General description
氯化钾是一种无机盐，常用于化肥工业。据报道，它是通过对微斜长石进行氯化而得。KCl晶体的本征导电性和非本征导电性已经测定。研究了KCl对线粒体膜、嵴和基质蛋白活性的影响。它有助于在水性介质中制备异恶唑啉。
Application
可用于磷酸盐缓冲液制备，以及蛋白提取和溶解。
氯化钾可用于制备以下物质：
- 无定形磷酸钙（ACP）沉积溶液，用于Ti试片上的ACP涂层。
- 改性亚甲基蓝（MB）溶液，用于MB两相滴定法。
- 含4-(2-羟乙基)-1-哌嗪乙磺酸（HEPES）的人工脑脊液（ACSF）溶液。
- 人造海水。
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
存储类别
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
Comparison of titanium soaked in 5M NaOH or 5M KOH solutions.
Kim C, et al.
Materials Science and Engineering, C, 33(1), 327-339 (2013)
Stability of stearic acid monolayers on Artificial Sea Water.
Brzozowska AM, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 407, 38-48 (2012)
Electrical Conductivity of Potassium Chloride.
Fuller RG, et al.
Physical Review Letters, 20(13), 662-662 (1968)
An environmentally benign synthesis of isoxazolines and isoxazoles mediated by potassium chloride in water.
Han L, et al.
Tetrahedron Letters, 55(14), 2308-2311 (2014)
Leyu Cui et al.
Analytical chemistry, 86(22), 11055-11061 (2014-11-05)
The methylene blue (MB) two-phase titration method is a rapid and efficient method for determining the concentrations of anionic surfactants. The point at which the aqueous and chloroform phases appear equally blue is called Epton's end point. However, many inorganic
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