Sodium Carbonate
Indicator name Industrial-grade Food grade
Total alkali content（Na2CO3）% ≥ 99.2 99.2
Sodium chloride（NaCl）% ≤ 0.7 0.7
Iron（Fe）% ≤ 0.0035 0.004
Sulfate（SO4）% ≤ 0.03 0.001
Water insoluble matter% ≤ 0.03 0.000 2
Loss on ignition2） % ≤ 0.8 0.8
Packing density（g/ml） ≤ 0.9 0.03
Particle size, 180μm sieve residue% ≤ 70
Soda Ash Light (kg / bag) Heavy soda ash (kg / bag) Remarks
40 50 Composite plastic woven bags, flexible container bags packing
750 1000
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