What is sulfur alkali?
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【Test Your Knowledge】Basic Chemical Engineering Knowledge (259) 3. The reason why sulfur alkali is commonly used in industry as a substitute for caustic soda is ( ). I don’t know what sulfur alkali is It can’t be found online either
What I understand is caustic soda containing sodium sulfite; it seems that utilizing the reducibility of sulfur to control a certain sulfur-to-alkali ratio can be beneficial for production
I think it should be sodium sulfide; sodium sulfide is also known as sodium hydrosulfide.
It’s sodium sulfide; the person on the second floor was right – it’s also known as caustic sulfide
I’ve never heard of sulfur-alkali ratio; I have, however, heard of the S/R ratio, which is the molar ratio of sulfur to alkali in the fuel used in modern dry-process kilns: S/R = molSO3/(molNa2O + molK2O)
1. I have only heard of caustic sulfide, which is used in the production of soda ash via the ammonia-alkali process. 2. During the sulfidation step in the chloride production process, the exhaust gas is absorbed by caustic soda, producing sulfurized alkali as a by-product.
What is commonly referred to as sulfur alkali is actually sodium sulfide! !