synthesys
(Stranger) 03-23-03 11:46 No 420548 |
Testing your ketone + other resourse | Bookmark | ||||||
Sodium Bisulfite Addition Complex H O | || + NaHSO3 --> ---OH / \ | SO3 - Na+ ---------------------------------------- Aldehyde and Ketone ---------------------------------------- Procedure Place 1 mL of sodium bisulfite reagent in a test tube and add 0.3 mL or 300 mg of unknown. Stopper the test tube and shake vigorously. Sodium bisulfite reagent: Add 1 mL of ethanol to 4 mL of a 40% aqueous solution of sodium bisulfite. Decant or filter the solution prior to use. Positive Test: Formation of a precipitate is a positive test. Complications: Aryl methyl ketones form the precipitate slowly or not at all. Addition complex stable only in neutral solution. ________________________________________ There are some stingy bees on the Hive that will not share their resources, I will not name drop, you all know who you are. My message to you is FUCK YOU. Took me some time to find this, so I wanted to share this with other people trying to learn. Here is another useful link, that will give you some options for testing your reagents: http://www.chemistry.ccsu.edu/glagovich/ |
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Rhodium (Chief Bee) 03-23-03 11:51 No 420549 |
Bisulfite | Bookmark | ||||||
Post 69041 (Rhodium: "Re: What makes bisulfite work?", Chemistry Discourse) ../rhodium /eleusis |
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