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This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
Bromoethane, also known as ethyl bromide, is a chemical compound of the haloalkanes group. It is abbreviated by chemists as EtBr (which is also used as an abbreviation for ethidium bromide ). This volatile compound has an ether-like odor.
Ethylmagnesium bromide is commercially available, usually as a solution in diethyl ether or tetrahydrofuran. It may be prepared in the normal manner of Grignard reagents — by reacting bromoethane with magnesium in diethyl ether: [2] EtBr + Mg → EtMgBr
Water and air, which rapidly destroy the reagent by protonolysis or oxidation, are excluded. [1] Although the reagents still need to be dry, ultrasound can allow Grignard reagents to form in wet solvents by activating the magnesium such that it consumes the water.
2 CH 3 MgX + 2 dioxane ⇌ (CH 3) 2 Mg + MgX 2 (μ-dioxane) 2 ↓. In such procedures, the dimethylmagnesium exists as the ether adduct, not the polymer. [4] Addition of 1,4-dioxane causes precipitation of solid MgX 2 (μ-dioxane) 2, a coordination polymer. [4] This precipitation drives the Schlenk equilibrium toward (CH 3) 2 Mg. Related ...
2-[2-(Dimethylamino)ethoxy]ethanol is an organic compound with the molecular formula C 6 H 15 NO 2 and is a liquid at room temperature. Dimethylaminoethoxyethanol is polyfunctional, having a tertiary amine, ether and hydroxyl functionality. Like other organic amines, it acts as a weak base.
It can be prepared by reacting ethylmagnesium bromide with methyl acetate in the so-called Grignard reaction using dried diethyl ether or tetrahydrofuran as solvent. Synthesis of 3-Methyl-3-pentanol. It can be prepared also by reacting ethylmagnesium bromide with butanone in the same conditions already mentioned.
Dimethylethanolamine (DMAE or DMEA) is an organic compound with the formula (CH 3) 2 NCH 2 CH 2 OH. It is bifunctional, containing both a tertiary amine and primary alcohol functional groups. It is a colorless viscous liquid. It is used in skin care products for improving skin tone and also taken orally as a nootropic.