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Molecular formula: NaCl
Molecular weight: 58.44
CAS NO: 7647-14-5
Properties: white crystal or crystalline powder. Relative density is 2.165, melting point is 801℃, boiling point is 1413℃. Soluble in water and glycerin, slightly soluble in ethyl alcohol and liquid ammonia.
Uses: as analytical reagent. It can be used in pharmaceutical, biological medium and other fields.
Standard: maximum assay of impurities is in %
| Specification/item |
Analytically pure-AR
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Chemically pure-CP
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Assay(NaCl) /%
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≥99.5
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≥99.5
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Water solution reaction
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Qualified
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Qualified
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Clarity test
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Qualified
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Qualified
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Water insoluble matter
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≤0.005
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≤0.02
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Drying loss
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≤0.5
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≤0.5
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Iodide (I)
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≤0.002
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≤0.012
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Bromide(Br)
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≤0.01
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≤0.05
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Sulfate (SO4)
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≤0.002
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≤0.005
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Nitrogen compounds (N)
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≤0.001
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≤0.003
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Phosphate (PO4)
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≤0.001
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－
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Magnesium (Mg)
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≤0.002
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≤0.005
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Potassium (K)
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≤0.02
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≤0.04
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Calcium (Ca)
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≤0.005
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≤0.01
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Ferrocyanide [Fe(CN)6]
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≤0.0001
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－
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Iron (Fe)
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≤0.0002
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≤0.0005
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Arsenic (As)
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≤0.00005
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≤0.0001
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Barium (Ba)
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≤0.001
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≤0.001
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Heavy metal (Pb)
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≤0.0005
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≤0.001
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Packing: woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.
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