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The Chemistry Behind Bath Bombs As I mentioned earlier, the primary reaction that makes bath bombs work is the acid-base reaction between citric acid and baking soda, or sodium bicarbonate. This produces a salt, (tri)sodium citrate, water, and carbon dioxide. It looks like...

You know, I bet you could have a hard shell of dextrin-bound inert filler with a hollow core half full of loose citric acid + bicarbonate and make that work. Maybe have a cotton "fuse" that would let enough water in through the side to start the reaction but not let air out too fast. Once it...

Oh man, now the pressure is on, heh. Whispers to self *don't mess up don't mess up*. Its funny, really, when I was younger I used to make fireworks, and many of the tricks used in that apply here too. Things about controlling the reaction rates of various layers, pyrotechnic stars, all the good...

Hey! I just started a thread here - http://www.soapmakingforum.com/showthread.php?t=53708 Its not quite done yet, but I plan on breaking down the whole process. Ill give you a spoiler, though. Dissolve a little bit of dextrin in your water you use to wet your mixture. Its the same stuff that...

First, a little bit of background. My wife discovered Lush bath bombs a while ago and has been totally obsessed with them since. Some of that may have rubbed off on me too, heh. The thing is, they aren't cheap, but more importantly, I like to make things. So I learned how to make bath...