ABSTRACT: Determination of
methyl ester conversion on biodiesel processing using 1H-NMR
spectrometer has been done. Methoxy spectra from methyl ester would appear at
3,7 ppm (singlet), spectra at 4,2 ppm (doublet of doublet) was glyceridic
proton. The spectrum could be used as reference to determine the degree of
biodiesel conversion, because spectra at chemical shift 4.2 ppm was characteristic
for triglyceride that methyl ester did not have it. Whereas, spectra at
chemical shift 3.7 ppm was characteristic for methyl ester that triglyceride
did not have it. The extent of both spectrum indicated for incompletness in
biodiesel synthesis.
Keywords: 1H-NMR,
methyl ester, biodiesel
Penulis: Dwi Kartika dan
Yoeswono
Kode Jurnal: jpkimiadd080015
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