Sodium chloride 99,0, powder_white crystalline ACS
Supplier: MP BiomedicalsTotal Ratings: 0
Avg. Ratings: 0.0 out of 5
Synonyms:
Saline, NaCl, Sea salt, Halite
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 has a neutral pH (6,7 to 7,3).
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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Formula:
NaCl MW: 58.44 g/mol Boiling Pt: 1413 Melting Pt: 801 °C (lit.) |
MDL Number:
MFCD00003477 CAS Number: 7647-14-5 Merck Index: 14,08599 |
Specification Test Results
| Assay | ≥99,0% |
| Barium | Passes |
| Bromide | ≤0,01% |
| Insoluble Matter | ≤0,005% |
| Magnesium (Mg) | ≤0,001% |
| Sulphate (SO₄) | ≤0,004% |
| Iron (Fe) | ≤0,0002% |
| Calcium (Ca) | ≤0,002% |
| Chlorates and Nitrates (as NO₃) | ≤0,003% |
| Phosphate (PO₄) | <0,0005% |
| Heavy Metals | ≤0,0005% (as Pb) |
| Potassium (K) | ≤0,005% |
| Iodide (I) | ≤0,002% |
| pH (5% aq soln, 25°C) | 5.0 - 9.0 |
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