Guest guest Posted December 22, 2007 Report Share Posted December 22, 2007 Hi everyone - I'm a newby. I went to order citric acid from my favorite on-line chemical company, only to find there are 2 kinds - Hydrous and Anhydrous. From what I can gather, one is granular and one is powder (and something to do with water molecules). Does anyone know which one is the right one to use? Thanks in advance. Barb Quote Link to comment Share on other sites More sharing options...
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