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Molecular formula: Na2CO3
Molecular weight: 105.99
CAS NO:497-19-8
Properties: White powder. Relative density is 2.532. Breaks down at 400℃. Melting point is 851℃. Easily soluble in water, insoluble in ethyl alcohol.
Uses: As analytical reagent and standard reagent. In preparing sodium salts, soda glasses, optical glasses, and etc.
Standard:
| Standard/item |
Analytical pure-AR
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Chemical pure-CP
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Assay(Na2CO3) /%
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≥99.8
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≥99.8
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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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≤0.01
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≤0.02
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Drying loss
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≤1.0
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≤1.0
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Chloride(Cl)
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≤0.002
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≤0.005
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Sulfur compound(SO4)
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≤0.005
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≤0.01
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Nitrogen compound(N)
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≤0.001
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≤0.002
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Phosphate and silicate(SiO3)
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≤0.006
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≤0.013
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Magnesium (Mg)
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≤0.002
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≤0.005
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Aluminium (Al)
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≤0.003
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≤0.01
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Potassium (K)
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≤0.005
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≤0.02
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Calcium (Ca)
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≤0.01
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≤0.02
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Iron (Fe)
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≤0.0005
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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, kraft bag or fiber drum lined with plastic, net weight is 25kg.
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