polybasic acid

pol·y·ba·sic ac·id

an acid containing more than three ionizable atoms of hydrogen in the molecule. See: acid (1).
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
The present invention relates to a modified cellulose fiber-containing rubber composition containing: a modified cellulose fiber (A) obtained by adding a C15 or higher cyclic polybasic acid anhydride (a) containing a hydrophobic group to a cellulose fiber through esterification; a dispersing polymer (B) having a softening point of 135[degrees]C or lower; and a rubber component (C).
An unsaturated polyester resin system consists of a resin formed by the partial reaction of a polybasic alcohol with a saturated or unsaturated polybasic acid, and a monomer, which dissolves that resin and acts as the crosslinking or thermosetting agent.
Polyols prepared from palm oil were reacted with carboxy-functional acrylic copolymer instead of di-or polybasic acids to produce acrylic alkyd resin.
Polybasic acids play an important role in biological and industrial processes and accurate knowledge of their properties is therefore required.
pH calculations involving hydrolysis, polybasic acids, buffer solutions and the common titrametric methods are treated in chapters 7 through 12 with most of the templates providing for graphing.