Natriumchlorid 99,0-100,5%, Pulver USP
Lieferant: MP Biomedicals
Soluble in water (357 mg/ml at 25 °C; 384 mg/ml at 100 °C), glycerol (100 mg/ml); very slightly soluble in ethanol. Solubility in water is decreased by HCl; almost insoluble in concentrated HCl. Aqueous solutions are at a neutral pH (6,7 to 7,3). Aqueous solutions of sodium chloride are stable at room temperature.
Sodium chloride is used in a wide variety of biochemical applications, including intravenous fluids (normal saline is 0,9% w/v in water), density gradients, a diluent to increase ionic strength in buffers or culture media and in salt-out procedures in the isolation of DNA. It has also been used in high concentrations for preservation of foods since bacteria cannot grow in high salt conditions. A salt-ice mixture in the ratio of approximately 33 g sodium chloride to 100 g ice (at -1 °C) will drop in temperature to as low as -21 °C, depending on the rate of stirring and the size of the ice chunks.
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Formel:
NaCl Molecular Weight: 58,44 g/mol |
MDL:
MFCD00003477 CAS-Nummer: 7647-14-5 |
Spezifikation Testergebnisse
| Synonyms | Salt; Dendritis; Halite; Purex; Rock salt; saline; sterling; table salt; top flake |
| Form | Powder |
| Storage | Store at Room Temperature (15 - 30 °C) |
| Heavy Metals | ≤5 ppm |
| Loss on Drying | ≤0,5% |
| Sterilisation of Solutions | It can be sterilised by autoclaving or sterile filtering |
| Aluminum | ≤0,2 μg/g |
| Magnesium and Calcium | ≤0,01% |
| Arsenic | ≤1 μg/g |
| Iron | ≤2 μg/g |
| Limit of Phosphates | ≤0,0025% |
| Limit of Potassium | ≤0,05% |
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