The Influence of Variation Concentrations of C-4-Methoxyphenyl-calix[4]resorcinarene in Inhibiting Calcium Sulphate (CaSO4) Scale Formation Suryadi Budi Utomoa and Indah Wahyuni
Chem Edu Universitas Sebelas Maret
Abstract
The research has been conducted to determine the ability of C-4-carboxymethoxyphenyl-calix[4]resocinarene as This study aims to: (1) determine whether the compound C-4-methoxyphenylkalix[4]resorcinarene is able to inhibit the growth of calcium sulphate (CaSO4) crust- (2) determine the effect of variations in the concentration of the addition of inhibitor compounds on the growth of crust (CaSO4)- (3) knowing the FTIR characterization of the inhibitor compounds before and after being used to inhibit the formation of crust (CaSO4)- (4) knowing the SEM morphology of the inhibitor compounds before and after being used in inhibiting the formation of crust (CaSO4)- and (5) determine the crystal size and degree of crystallinity based on the XRD test of the inhibitor compound before and after it is used to inhibit the formation of calcium sulfate (CaSO4) crust. The results showed that: (1) c-4-methoxyphenylkalix[4]resorcinarene inhibitors can inhibit the growth rate of CaSO4 crust- (2) the growth rate of CaSO4 crust was most inhibited by the inhibitor variation of 40 ppm in the 60th minute, namely 538 mg- (3) the results of FTIR analysis of C-4-methoxyphenylkalix[4]resorcinarene before and after it was used as a CaSO4 inhibitor underwent changes, with the functional group that interacted the most with Ca2+ was the methoxy group- (4) the morphology of the C-4-methoxyphenylkalix[4]resorcinarene compound after being used as an inhibitor has a more porous surface and larger clumps when compared to the results before being used as an inhibitor- and (5) through XRD results obtained the degree of crystallinity of C-4-methoxyphenylkalix[4]resorcinarene before and after being used as a CaSO4 crust inhibitor were respectively 80.77% and 45.37% and a crystal size of 27.53944 nm and 31.44179 nm
