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Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. It is the anhydride of phthalic acid. Phthalic anhydride is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially. This white solid is an important industrial chemical, especially for the large-scale ...
Toggle the table of contents ... 2 in the presence of vanadium pentoxide as catalyst gives phthalic anhydride: C 10 H 8 + 4.5 O 2 ... Melting point [°C] Boiling ...
Solvent. Density (g cm-3) Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source. Aniline. 184.3.
Phthalates are produced industrially by the acid catalysed reaction of phthalic anhydride with excess alcohol.The synthesis of diethyl phthalate is illustrative of this: . The properties of the phthalate can be varied by changing the alcohol, [12] allowing for an almost limitless range of products, although only around 30 are, or have been, commercially important.
Fm. Md. No. Legend. Values are in kelvin K and degrees Celsius °C, rounded. For the equivalent in degrees Fahrenheit °F, see: Boiling points of the elements (data page) Some values are predictions. Primordial From decay Synthetic Border shows natural occurrence of the element. s-block.
In organic chemistry, phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2 and structure HO (O)C− C 6 H 4− C (O)OH. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. [4] Phthalic acid is one of three isomers of ...
Dibutyl phthalate (DBP) is an organic compound which is commonly used as a plasticizer because of its low toxicity and wide liquid range. With the chemical formula C 6 H 4 (CO 2 C 4 H 9) 2, it is a colorless oil, although impurities often render commercial samples yellow. [3]
Pages in category "Phthalic anhydrides" The following 7 pages are in this category, out of 7 total. ... C. 3-Chlorophthalic anhydride; 4-Chlorophthalic anhydride; M.