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Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source; ... Acetic Anhydride: 139.0 [6] Ethylene Dichloride: 1.25 83.5 −35 [7 ...
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.
Thiophene brominates 10 7 times faster than does benzene. Acetylation occurs readily to give 2-acetylthiophene, precursor to thiophene-2-carboxylic acid and thiophene-2-acetic acid. [9] Chloromethylation and chloroethylation occur readily at the 2,5-positions. Reduction of the chloromethyl product gives 2-methylthiophene.
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. For broader coverage of this topic, see Boiling point . Boiling points, Master List format
Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O , it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis .
If the two layers are heated together, the system of layers will boil at 53.3 °C, which is lower than either the boiling point of chloroform (61.2 °C) or the boiling point of water (100 °C). The vapor will consist of 97.0% chloroform and 3.0% water regardless of how much of each liquid layer is present provided both layers are indeed present.
Tetramethylethylenediamine (TMEDA or TEMED) is a chemical compound with the formula (CH 3) 2 NCH 2 CH 2 N(CH 3) 2.This species is derived from ethylenediamine by replacement of the four amine hydrogens with four methyl groups.
In the laboratory, it can be easily synthesized from anthranilic acid and acetic anhydride. N-Acetylanthranilic acid exhibits triboluminescence when crushed. [5] The fractured crystals have large electrical potentials between areas of high and low charge.