OQ Chemicals announced on May 19 price increases in Europe on several carboxylic acids that can be used as intermediates in synthetic lubricants: €110 (U.S. $135) per metric ton for both 2 ethylhexanoic acid and isononanoic acid, €50/t for both n-butyric acid and isobutyric acid, and €180/t for n-valeric acid.