What are heavy soda ash and light soda ash?

The forum already has this information. What is the heap specific gravity of heavy alkali! Chlor-alkali chemical version Xiaoyuer818 2009-3-14 2 / 166 Xiaoyuer818 2009-3-14 11:28 Novice’s stupid question - light alkali and heavy alkali chlor-alkali chemical version tracily 2008-12-14 3 / 414 Damo Gezi 2008-12-15 08:03 What are heavy alkali and light alkali? Chlor-alkali chemical version Jindouzier 2008-6-3 10 / 1554 Shapaipai 2008-6-7 11:43

This post was last edited by chen3jun on 2009-9-24 11:32. There are two main types of soda ash products, namely heavy soda ash and light soda ash. There are also ultra-light soda ash and extra-heavy soda ash. The difference in specifications mainly lies in the differences in physical properties, such as bulk density, particle size and shape, and resting angle. Generally, the density of light soda ash is 500-600kg/m3, the density of heavy soda ash is 1000-1200kg/m3, the density of ultra-light soda ash is about 370kg/m3, and the density of super-heavy soda ash is 1550-2553kg/m3. Heavy soda ash: Implementation standard GB210.1-2004 Class I and Class II index items Excellent products Excellent products First-class products Qualified products Total alkali content (based on the mass fraction of NaCO 3 on a dry basis) / % ≥ 99.4 99.2 98.8 98 Total alkali content (based on the mass fraction of NaCO 3 on a wet basis) / % ≥ 98.1 97.9 9 * * 96.7 Sodium chloride (based on the mass fraction of NaCl on a dry basis) / % ≤ 0.3 0.7 0.9 1.2 Mass fraction of iron (Fe) (on a dry basis) % ≤ 0.003 0.0035 0.006 0.01 Sulfate (based on the mass fraction of SO 4 on a dry basis) /% ≤ 0.03 0.03 --Mass fraction of water-insoluble matter/% ≤ 0.02 0.03 0.1 0.15 Bulk density/(g/ml) ≥ 0.85 0.9 0.9 0.9 180μm grains % sieve residue ≥ 75 70 65 60 degree 1.18mm sieve residue% ≤ 2 - - - 2. Light soda ash: Implementation standard GB210.1-2004 Class I and Class II index items Excellent products Excellent products First-class products Qualified products Total alkali content (based on the mass fraction of NaCO 3 on a dry basis) / % ≥ 99.4 99.2 98.8 98 Total alkali content (based on the mass fraction of NaCO 3 on a wet basis) / % ≥ 98.1 97.9 9 * * 96.7 Sodium chloride (based on the mass fraction of NaCl on a dry basis) / % ≤ 0.3 0.7 0.9 1.2 Mass fraction of iron (Fe) (on a dry basis) % ≤ 0.003 0.0035 0.006 0.01 Sulfate (based on the mass fraction of SO 4 on a dry basis) /% ≤ 0.03 0.03 - - Mass fraction of water-insoluble matter/% ≤ 0.02 0.03 0.1 0.15

There are corresponding standards for edible alkali and industrial alkali. The main difference lies in the control range of heavy metals.

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study* Got it! Heavy soda ash, light soda ash.