Sutanto, Hery and Belinda, Rosa and Yusri, Silvya and Darmawan, Akhmad and Legowo, Evita Herawati and Nasikin, Mohammad (2019) Modification of Pyrogallol with Palmitic Acid as a Soluble Biodiesel Additive. In: International Conference on Chemical Engineering UNPAR 2019, Bandung, Indonesia.

	Text Copy of Paper Rosa ICCE.pdf Download (1MB)
	Text Turnitin Paper Rosa ICCE.pdf Download (1MB)

Abstract

Biodiesel, as a promising substitute for fossil diesel oil, has nevertheless a main disadvantage, which is oxidized easily. The oxidation degrades its quality and causes disturbances to the machine during operations. Therefore, antioxidant is commonly used in biodiesel. However, the common antioxidant used, namely pyrogallol, has a poor solubility in biodiesel due to the polarity difference. Therefore, this research focused on the modification of pyrogallol by attaching palmitic acid molecule to the benzene ring of pyrogallol molecule through the Friedel-Crafts acylation. The product was characterized by TLC and 1H NMR spectroscopy. It was found that the reaction produced a new product, 1.1’-(4,5,6-trihydroxy-1,3-phenylene)bis(hexadecane-1-one). The new product was subjected to a solubility test and an antioxidant activity evaluation. The result showed that the solubility limit of the product was at 2500 ppm, which was significantly higher than pyrogallol analyzed using one sample t-test. However, using DPPH method, it was found that the antioxidant activity of the new product was slightly lower than pyrogallol as the IC50 value of the new product was 18.44 ppm, and pyrogallol’s was 3.07 ppm.

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty of Life Sciences and Technology
Depositing User:	Faisal Ifzaldi
Date Deposited:	08 Jan 2024 09:36
Last Modified:	08 Jan 2024 09:36
URI:	http://repository.sgu.ac.id/id/eprint/2612

Actions (login required)

View Item