60130
氯化钾
puriss. p.a., ≥99.5% (AT)
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| 包装规格 | 货号 | 是否有货 | 价格 |
|---|---|---|---|
| 250 g | 请联系客服了解存货情况 | $89.60 | |
| 1 kg | 请联系客服了解存货情况 | $180.00 | |
| 5 kg | 请联系客服了解存货情况 | $671.00 |
关于此项目
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:
≥99.5% (AT)
Form:
powder or crystals
Solubility:
water: soluble ((355 g/l at 25 °C (77 °F))
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
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此商品 | |||
|---|---|---|---|
| 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) |
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]
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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
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
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 60130-250G | 04061832659411 |
| 60130-5KG | 04061832993881 |
| 60130-1KG | 04061826714805 |
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