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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 .
Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) ... Water: 100.00 0.512 0.00 –1.86 K b & K f [2] Ethyl Acetate: 77.1 [5] Acetic Anhydride: 139.0 [6 ...
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.
Acetic acid can never be truly water-free in an atmosphere that contains water, so the presence of 0.1% water in glacial acetic acid lowers its melting point by 0.2 °C. [ 9 ] A common symbol for acetic acid is AcOH (or HOAc), where Ac is the pseudoelement symbol representing the acetyl group CH 3 −C(=O)− ; the conjugate base , acetate ( CH ...
Melting point: −123.37 °C (−190.07 °F; 149.78 K) ... Acetic anhydride reacts with acetaldehyde to give ... and it may be released into waste water or the air ...
Melting point: −65 °C (−85 °F; 208 K) Boiling point: 40 °C (104 °F; 313 K) Solubility in water. reacts Solubility: ... Similar to acetic anhydride, ...
Boiling point: 162 °C (324 °F; 435 K) at 50 mmHg Acidity (pK a) 9.6 in water, 17. ... DMAP and acetic anhydride react in a pre-equilibrium reaction to form an ion ...
Melting point: 283 to 286 °C (541 to 547 °F; 556 to 559 K) ... by dehydration of pyromellitic acid using acetic anhydride. [2] ... complex formed upon co ...