Used as a catalyst in organic synthesis, particularly in esterification and etherification reactions. It facilitates the formation of carbon-oxygen bonds under mild conditions, making it valuable in pharmaceutical and fine chemical manufacturing. The ethanol solution form enhances its handling and solubility compared to the solid anhydrous compound, allowing for more uniform dispersion in reaction mixtures. Also employed in surface modification of metal oxides for electronic materials due to its ability to deposit tantalum-containing films. Its reactivity with hydroxyl groups makes it useful in coupling agents for inorganic-organic hybrid systems.