Potassio cloruro ≥99%, white crystalline powder per biologia molecolare
Fornitore: MP Biomedicals
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.
- Molecular Biology Reagent Grade
- Presentation: White Crystalline Powder
- Soluble in water (1 g/3 mL - clear, colorless solution), boiling water (1 g/1.8 mL), glycerol (1 g/14 mL), or ethanol (1 g/250 mL); insoluble in ether or acetone; hydrochloric acid, sodium or magnesium chlorides diminish its solubility in water.
Formula:
KCl Punto di ebollizione: ∼1500 °C (lett.) Punto di fusione: ∼770 °C (lett.) Densità: 1,984 g/cm³ (lett.) Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00011360 CAS Number: 7447-40-7 EINECS: 231-211-8 Merck Index: 14,07621 |
Risultati del test di specificazione
Identity Test | Passes |
Purity | ≥99% |
pH (5% aq soln) | 5.4-8.6 |
Insoluble Matter | ≤0.005% |
Iodide | ≤0.002% |
Bromide | ≤0.01% |
Chlorate & Nitrate | ≤0.003% |
Phosphate | ≤5ppm |
Iron | ≤3ppm |
Calcium | ≤0.002% |
Magnesium | ≤0.001% |
Sodium | ≤0.005% |
Loss on Drying (105°C/2h) | ≤1.0% |
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