Are you planning to turn the sucrose into carbon, or just caramelize it? If you're planning to turn it into carbon, a small amount of concentrated sulfuric acid, a powerful dessicant, will do a very effective job of it.
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there are some residuals from crystallisation and bleaching of ordinary sugar that you won't like in ultrapure carbon.
There may be very likely other contaminants in the sugar from residual natural minerals and may be some leached metallic contaminants from the process equipment.
Considering the carbonisation process - estimated to run in vacuum? - where and how to remove the hydrogen?
How is heating accomplished?
What about heat transfer inside the sugar melt?
What about heating rate and final temperature and time?
You can get anything from a very hard and brittle and mostly amorphous "pyrolithic" carbon that contains traces of hydrogen to porous carbon, to cracked carbon grains with porosity to partial or total graphitisation.
Any material that will bind to hydrogen will accelerate the process. But not likely to be existing with very high purity. So why?
What is your preferred product shape to facilitate the next step? Grains, chunks, powder? (To avoid crushing?)
Concentrated sulfuric acid will char (dehydrate and oxidize) sucrose. But you might not find such a method useful since, depending on your application, you might not want your product contaminated with sulfuric acid.
charring sugar
Re: charring sugar
