Anhydrite - Import export

Phthalic Anhydride is an organic compound. It is a very useful chemical compound which is industrially produced from the catalytic oxidation of naphthalene or ortho-xylene directly to phthalic anhydride. It is classified as an aromatic dicarboxylic acid and its chemical formula is C8H4O3.

Maleic Anhydride – MA is an organic compound. It is a very important chemical compound which is made by the vapour phase oxidation of n-butane. Its chemical formula is C4H2O3.