What do light alkalis and heavy alkalis refer to?
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This post was last edited by sunjl1981 on 2013-1-6 22:43. Do light alkalis and heavy alkalis refer to the concentration of the alkalis? # + + .
Light alkalis and heavy alkalis are classifications of soda ash based on its bulk density; their chemical composition is sodium carbonate in both cases. The difference lies in the fact that heavy soda ash is obtained by hydrating or compressing light soda ash, which results in changes in its density, bulk density, and particle size. To use an imperfect analogy, dust is like light soda ash; when water is added to it and it is compressed, the dust turns into small clumps of mud, just like heavy soda ash. In simple terms, bulk density means using an hourglass to measure how tall a pile of material with the same volume can be built ； Since heavy soda ash is formed from light soda ash through hydration or extrusion, its density is greater than that of light soda ash; this has nothing to do with concentration. In the soda ash industry, it is commonly referred to as light ash and heavy ash. It’s explained in too simple terms; I hope it’s understandable. This post was last edited by Sha Paka on 2009-1-10 at 15:47.]
http://bbs.hcbbs.com/viewthread.php?tid=215305&page=1#pid938498 This information is already available on the forum.
Heavy pure alkaline form: a white granular anhydrous substance that is soluble in water. When exposed to air at room temperature, it absorbs CO2 and water and releases heat, gradually converting into NaHCO3 and forming lumps. Molecular formula: Na2CO3. Baking soda is sodium bicarbonate, a mild alkali
Baking soda is simply baking soda; it’s not light soda ash. Don’t mislead people
Light alkalis and heavy alkalis are classifications of soda ash based on its bulk density (Na2CO3). The difference lies in their bulk densities: light alkalis have a bulk density of 0.45–0.69 Kg/l and a angle of repose of 50 degrees, while heavy alkalis have a bulk density of 0.8–9.1 Kg/l and an angle of repose of 45 degrees.
Sodium bicarbonate: Pure soda is obtained by calcining heavy alkali; here, \"heavy\" and \"light\" refer to two different concepts
Okay, understood? ? ? ? ? ? ? ? ? ? ? ?