chlorek potasu ≥99%, white crystalline powder dla biologii molekularnej
Dostawca: 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.
Formuła:
KCl Temp. Wrzenia: ∼1500 °C (lit.) Temp. topnienia: ∼770 °C (lit.) Gęstość: 1,984 g/cm³ (lit.) Temperatura przechowywania: Temperatura otoczenia |
Numer MDL:
MFCD00011360 Numer CAS: 7447-40-7 Numer WE (dawny EINECS): 231-211-8 Klasyfikacja Merck : 14,07621 |
Wyniki testów specyfikacyjnych
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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