02102892.5
0210289201
0210289205
0210289210
ICNA02102892.5EA
56.6
EUR
InStock
ICNA02102892.5
ICNA0210289201
ICNA0210289205
ICNA0210289210
Natriumchlorid 99,0-100,5%, Pulver USP
Natriumchlorid
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.