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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.
Phenacyl bromide is the organic compound with the formula C 6 H 5 C(O)CH 2 Br. This colourless solid is a powerful lachrymator as well as a useful precursor to other organic compounds. It is prepared by bromination of acetophenone: [2] C 6 H 5 C(O)CH 3 + Br 2 → C 6 H 5 C(O)CH 2 Br + HBr. The compound was first reported in 1871. [3]
Taber's reagent was created as an alternative to the Ohira-Bestmann reagent since its precursor, dimethyl 2-oxopropylphosphonate, is very expensive, which prevents large-scale reactions. Structurally, Taber's reagent is almost identical to the Ohira-Bestmann reagent, but with a bulkier acyl group ( phenyl group as opposed to methyl group ) on ...
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Bromoacetone is an organic compound with the formula C H 3 COCH 2 Br. It is a colorless liquid although impure samples appear yellow or even brown. It is a colorless liquid although impure samples appear yellow or even brown.
Acetophenone is formed as a byproduct of the cumene process, the industrial route for the synthesis of phenol and acetone.In the Hock rearrangement of isopropylbenzene hydroperoxide, migration of a methyl group rather than the phenyl group gives acetophenone and methanol as a result of an alternate rearrangement of the intermediate:
BrCH 2 CO 2 H Molar mass: 138.948 g·mol −1 Appearance White to light yellow crystalline solid Density: 1.934 g/mL Melting point: 49 to 51 °C (120 to 124 °F; 322 to 324 K) Boiling point: 206 to 208 °C (403 to 406 °F; 479 to 481 K) Solubility: Polar organic solvents: Acidity (pK a) 2.86 [1]
[23] 0.23 ppm of the earth's mass is water and 97.39% of the global water volume of 1.38 × 10 9 km 3 is found in the oceans. [ 84 ] Water is far more prevalent in the outer Solar System, beyond a point called the frost line , where the Sun's radiation is too weak to vaporize solid and liquid water (as well as other elements and chemical ...