sulfur heptahydrate
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This post was last edited by yezhuzi on 2013-10-30 at 10:30. Heptahydrate sulfurous acid… cough cough cough cough cough cough cough. Note: $ # $ $
Direct liquefaction uses iron as a catalyst, and since the source of iron mentioned by the original poster is relatively inexpensive, ferrous sulfate heptahydrate is generally used as the main raw material for preparing the catalyst. As for the working principle of catalysts, there are already many posts on the forum that explain it
Thank you, moderator Jordan569
http://bbs.hcbbs.com/viewthread.php?tid=360471 There is an introduction in this post