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Propionic anhydride is an organic compound with the formula (CH 3 CH 2 CO) 2 O. This simple acid anhydride is a colourless liquid. It is a widely used reagent in organic synthesis as well as for producing specialty derivatives of cellulose.
Phase behavior Triple point: 289.8 K (16.7 °C), ? Pa Critical point: 593 K (320 °C), 57.8 bar Eutectic point with water –26.7 °C Std enthalpy change
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. It is a colorless liquid that smells strongly of acetic acid, which is formed by its reaction with ...
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.
Polyanhydrides are surface eroding polymers. Surface eroding polymers do not allow water to penetrate into the material. They erode layer by layer, like a lollipop. The hydrophobic backbone with hydrolytically labile anhydride linkages allows hydrolytic degradation to be controlled by manipulating the polymer composition.
Butyric anhydride or butanoic anhydride is the chemical compound with the formula (CH 3 CH 2 CH 2 CO) 2 O. The molecule can be described as a condensation of two molecules of butyric acid with elimination of one water molecule (hence its name).
A common type of organic acid anhydride is a carboxylic anhydride, where the parent acid is a carboxylic acid, the formula of the anhydride being (RC(O)) 2 O. Symmetrical acid anhydrides of this type are named by replacing the word acid in the name of the parent carboxylic acid by the word anhydride. [2] Thus, (CH 3 CO) 2 O is called acetic ...
Perfluoropropionic acid (PFPrA) or pentafluoropropionic acid is an ultra-short chain perfluoroalkyl carboxylic acid with the formula CF 3 CF 2 CO 2 H. It is a colorless liquid that is strongly acidic.