Sodium chloride ≥99.0%, white crystalline powder ACS
Supplier: MP BIOMEDICALS (FKA ICN BIOMED
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 - 7.3).
Bromide= ≤0.01%; Magnesium (Mg)= ≤0.001%; Sulfate (SO4)= ≤0.004%; Iron (Fe)= ≤0.0002%; Calcium (Ca)= ≤0.002%; Chlorates and Nitrates (as NO3)= ≤0.003%; Nitrogen Compound (as N)= ≤0.001%; Phosphate (PO4)
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 (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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