7447-40-7
KCl
191700CR
98+%
-100 mesh
231-211-8
NO
Availability: | |
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Characteristic
Potassium chloride (also known as KCl or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous crystal appearance.
Chemical formula:KCl
Molar mass:74.5513 g/mol
Appearance:white crystalline solid
Odor:odorless
Density:1.984 g/cm3
Melting point:770 °C (1,420 °F; 1,040 K)
Boiling point:1,420 °C (2,590 °F; 1,690 K)
Solubility in water:217.1 g/L (0 °C);253.9 g/L (20 °C);360.5 g/L (100 °C)
Solubility:Soluble in glycerol, alkalies
Slightly soluble in alcohol Insoluble in ether
Solubility in ethanol:0.00288 g/L (25 °C)
Acidity (pKa):~7
Magnetic susceptibility (χ):−39.0·10−6 cm3/mol
Refractive index (nD):1.4902 (589 nm)
Crystal structure:face centered cubic
Application
Potassium chloride is a salt commonly used in the preparation of phosphate buffered saline and for the extraction and solubilization of proteins. It is a good potassium source. Also used in the hypotonic KCl-propidium iodide protocol for univariate analysis of metaphase chromosomes ; dissociation of eukaryotic ribosomes into subunits by high concentrations of potassium (0.3-1.0 M); preparation of mitochondria, provides an ionic osmotic support for those tissues that assume a gelatinous consistency upon homogenization.
Characteristic
Potassium chloride (also known as KCl or potassium salt) is a metal halide salt composed of potassium and chlorine. It is odorless and has a white or colorless vitreous crystal appearance.
Chemical formula:KCl
Molar mass:74.5513 g/mol
Appearance:white crystalline solid
Odor:odorless
Density:1.984 g/cm3
Melting point:770 °C (1,420 °F; 1,040 K)
Boiling point:1,420 °C (2,590 °F; 1,690 K)
Solubility in water:217.1 g/L (0 °C);253.9 g/L (20 °C);360.5 g/L (100 °C)
Solubility:Soluble in glycerol, alkalies
Slightly soluble in alcohol Insoluble in ether
Solubility in ethanol:0.00288 g/L (25 °C)
Acidity (pKa):~7
Magnetic susceptibility (χ):−39.0·10−6 cm3/mol
Refractive index (nD):1.4902 (589 nm)
Crystal structure:face centered cubic
Application
Potassium chloride is a salt commonly used in the preparation of phosphate buffered saline and for the extraction and solubilization of proteins. It is a good potassium source. Also used in the hypotonic KCl-propidium iodide protocol for univariate analysis of metaphase chromosomes ; dissociation of eukaryotic ribosomes into subunits by high concentrations of potassium (0.3-1.0 M); preparation of mitochondria, provides an ionic osmotic support for those tissues that assume a gelatinous consistency upon homogenization.
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