60130
塩化カリウム
puriss. p.a., ≥99.5% (AT)
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この商品について
化学式:
KCl
CAS番号:
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
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
Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.
Application
リン酸緩衝生理食塩水の調製及びタンパク質の抽出や可溶化に用いられます。
Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium salts. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H+) of buffers. From these values temperature dependence of the pH of these buffers was calculated.
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保管分類
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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)
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