Quantitative Analysis of Acid Value, OH Value and Viscosity in Acrylic Acid Esters using FT-NIR Spectroscopy

Acrylic acid esters are formed by the reaction of acrylic acid with alcohols. Hydroxyl value (OHv), acid value (Av) and viscosity (Visco) are commonly used to characterize and certify final acrylic acid ester products. OHv and Av provide an indication on synthesis completion, while Visco allows estimation of the molar mass of the produced monomers. In this application note, ABB Analytical Measurements performs the quantitative analysis of acrylic acid esters by FT-NIR spectroscopy by evaluating the OHv, Av and Visco.