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Dry distillation is the heating of solid materials to produce gaseous products (which may condense into liquids or solids). The method may involve pyrolysis or thermolysis, or it may not (for instance, a simple mixture of ice and glass could be separated without breaking any chemical bonds, but organic matter contains a greater diversity of molecules, some of which are likely to break).
Oil paints are composed of pigment molecules suspended in an oil-binding medium. Heavy metal salts are often used as pigment molecules, such as in lead white , red lead , and zinc white . [ 8 ] If those heavy metal salts react with free fatty acids in the oil medium, metal soaps may form in a paint layer that can then migrate outward to the ...
The presence of water causes undesirable base hydrolysis, so the reaction must be kept dry. In the transesterification mechanism, the carbonyl carbon of the starting ester (RCOOR 1 ) undergoes nucleophilic attack by the incoming alkoxide (R 2 O − ) to give a tetrahedral intermediate, which either reverts to the starting material, or proceeds ...
2. Bring a large pot of salted water to a boil. Add the Broccolini and cook until crisp-tender, about 3 minutes. Drain well, shaking off the excess water; pat dry. 3. In the large skillet, heat the olive oil until shimmering. Add the shallot and cook over moderate heat, stirring, until lightly browned, about 1 minute.
1. In a saucepan, bring the water to a boil with the rice. Cover and simmer over moderately low heat until tender, 45 minutes. 2. In a medium skillet, cook the onion and garlic in the butter over moderate heat until softened. Stir in the rice, season with salt and pepper, cover and keep warm. 3. In a large skillet, heat 1 tablespoon of the oil.
To make the quick-pickled onions: In a small microwave-safe bowl or measuring cup, combine the onion, vinegar, 1/2 cup water, sugar, and salt. Microwave on high for 3 minutes. Let cool 15 minutes.
An 1836 lithograph of tortilla production in rural Mexico Bowl of hominy (nixtamalized corn kernels). Nixtamalization (/ ˌ n ɪ ʃ t ə m ə l ɪ ˈ z eɪ ʃ ən / nish-tə-mə-lih-ZAY-shən) is a process for the preparation of maize (corn), or other grain, in which the grain is soaked and cooked in an alkaline solution, usually limewater (but sometimes aqueous alkali metal carbonates), [1 ...
In a large skillet, melt the butter in the remaining 1 tablespoon of olive oil. Add the drained morels and season with salt and pepper. Cover and cook over moderate heat until glazed, about 3 minutes. Carefully pour in the reserved soaking liquid, stopping before you reach the grit at the bottom.