Search results
Results from the WOW.Com Content Network
Pyrrole is an extremely weak base for an amine, with a conjugate acid pK a of −3.8. The most thermodynamically stable pyrrolium cation (C 4 H 6 N +) is formed by protonation at the 2 position. Substitution of pyrrole with alkyl substituents provides a more basic molecule—for example, tetramethylpyrrole has a conjugate acid pK a of +3.7.
Say goodbye to stinky, smelly odors in your home with these helpful hacks for getting rid of any kind of stench. 1-step odor eliminating remedies you won't believe you never knew about Skip to ...
Simply Recipes / Myo Quinn. Tip for Buying Fresh Ginger. Be the annoying person at the grocery store who touches 99 percent of the bunch (don't worry, they won't get bruised or ruined) to find the ...
When hosting a dinner party, lingering odors from long hours of cooking in the kitchen can be an issue. Cooking odors from fish, onion, garlic, burnt foods and fried foods can last especially long.
The aldehyde and pyrrole are heated in this medium to afford modest yields of the meso tetrasubstituted porphyrins [RCC 4 H 2 N] 4 H 2. The reaction entails both condensation of the aldehydes with the 2,5-positions of the pyrrole but also oxidative dehydrogenation of the porphyrinogen [RCC 4 H 2 NH] 4.
At room temperature, thiophene is a colorless liquid with a mildly pleasant odor reminiscent of benzene, [citation needed] with which thiophene shares some similarities. The high reactivity of thiophene toward sulfonation is the basis for the separation of thiophene from benzene, which are difficult to separate by distillation due to their ...
Vinaigre des quatre voleurs. Four thieves vinegar (also called thieves’ oil, Marseilles vinegar, Marseille's Remedy, prophylactic vinegar, vinegar of the four thieves, camphorated acetic acid, vinaigre des quatre voleurs and acetum quator furum [1] [2]) is a concoction of vinegar (either from red wine, white wine, cider, or distilled white) infused with herbs, spices or garlic that was ...
Body odor can be frustrating and embarrassing to deal with. But medical experts want you to know that there are ways to fix it, even when you feel like you've exhausted all the options.