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All Journal Al-Kimia Jurnal Riset Pendidikan Kimia (JRPK)
Arniah Dali
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Chemistry Education

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Sintesis N-p-Metilbenzil-p-Kumaramida dari Asam p-Kumarat Nasriadi Dali; Arniah Dali
Al-Kimia Vol 5 No 2 (2017): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v5i2.3643

Abstract

N-p-Methylbenzyl-p-coumaramide has been synthesized from p-coumaric acid. The purpose of this study was to synthesize N-p-methylbenzyl-p-coumaramide compounds from p-coumaric acid. The N-p-methylbenzyl-p-coumaramide target compound was obtained by direct conversion method using a orthoboric acid catalyst. Target compounds were identified and characterized by melting point, TLC test, FTIR, 1H-NMR, and 13C-NMR spectrometer. The results showed that N-p-methylbenzyl-p-coumaramide compound obtained was white solid (yield 75.83%) with melting point 156-158 oC and TLC (SiO2, n-hexane : chloroform = 5: 3 v/v, Rf = 0.37). 
Synthesis of Nitro Ethyl Oleic from Used Cooking Oil Nasriadi Dali; Arniah Dali
Al-Kimia Vol 7 No 1 (2019): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v7i1.7642

Abstract

Nitro ethyl oleic has been synthesized from used cooking oil. This study aims to synthesize nitro ethyl oleic from used cooking oil. The target compounds of nitro ethyl oleic are obtained through four stages, namely the stages of purification, esterification, transesterification, and nitration. From the purification stage of used cooking oil with sago pulp activated charcoal adsorbent is obtained fragrant and delicious pure cooking oil, yellow with water content of 0.13%, acid number 1.10 mg KOH/g fat, FFA level of 1.57%, and turbidity of 2.45 NTU. From the esterification stage was obtained methyl oleic (r = 0.887 g/cm3) and oil (triolein) in light brown with FFA level of 0.34%. From the transesterification stage was obtained ethyl oleic (83.33% acquisition) in the form of yellow liquid (r = 0.902 g/cm3), fragrant, and boiling point 77oC. From the nitration stage was obtained nitro ethyl oleic (66.67% acquisition) in the form of blackish brown liquid (r = 1.587 g/cm3), typical of biodiesel with a boiling point of 80oC.  
Co-Authors La Ode Rusdi Anton Nasriadi Dali R Rafiuddin