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Pengaruh Konsentrasi Asam Sulfat dan Waktu Reaksi Pada Sintesis α-Terpineol dari Terpentin

Indonesian Journal of Chemical Science · Vol. 8 No. 1 (2019) · pp. 23–27

DOI
10.15294/ijcs.v8i1.23382
ISSN
2502-6844, 2252-6951
Published
2019-02-15
Publisher
Universitas Negeri Semarang
Language
eng

Abstract

Abstract The aim of this research is to study on effect of the catalyst concentration of sulfuric acid (H2SO4) and reaction time in α-terpineol synthesis process from turpentine. Turpentine used in this research contents 65.891% α-pinene. Parameters that studied were the catalyst concentration of H2SO4 (20%, 25%, 30%, 35%) and reaction time (1 hour, 2 hours, 3 hours, 4 hours and 5 hours). The volume of ethanol used 135 mL. The study was carried out using a three-neck flask, a condenser, hot plate, a magnetic stirrer and thermometer with the speed stirring of 500 rpm. The product of synthesis were neutralized using 5% NaOH, then analyzed using GC and GC-MS. The results of this study showed that the highest selectivity of α-terpineol was 11,54% at 25% H2SO4 catalyst and 3 hours reaction time. Keyword: α-terpineol, α-pinene, turpentine, H2SO4

Collaboration network of the authors

10 authors · 16 co-authorship links

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  • Universitas Halu Oleo
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
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Co-authorOrganisationJoint articles
Dwi Derti SulistiowatiAffiliation unknown1
Ria Putri HermiyatiAffiliation unknown1
Simparmin Br. GintingAffiliation unknown1
Nur HasanahUniversitas Halu Oleo1
Eka Nanda PutrianiAffiliation unknown1
Simparmin Br. GintingAffiliation unknown1
Della InestiaAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/sju/index.php/ijcs/oai, first harvested 5 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Pengaruh Konsentrasi Asam Sulfat dan Waktu Reaksi Pada Sintesis α-Terpineol dari Terpentin</dc:title>
	<dc:creator>Prastiwi, Yohanna Francisca Budi</dc:creator>
	<dc:creator>Selfiana, Teti</dc:creator>
	<dc:creator>Utami, Herti</dc:creator>
	<dc:description xml:lang="en-US">Abstract 
The aim of this research is to study on &amp;nbsp;effect of the catalyst concentration of sulfuric acid (H2SO4) and reaction time in α-terpineol synthesis process from turpentine. Turpentine used in this research contents 65.891% α-pinene. Parameters that studied were the catalyst concentration of H2SO4 (20%, 25%, 30%, 35%) and reaction time (1 hour, 2 hours, 3 hours, 4 hours and 5 hours). The volume of ethanol used 135 mL. The study was carried out using a three-neck flask, a condenser, hot plate, a magnetic stirrer and thermometer with the speed stirring of 500 rpm. The product of synthesis were neutralized using 5% NaOH, then analyzed using GC and GC-MS. 
The results of this study showed that the highest selectivity of α-terpineol was 11,54% at 25% H2SO4 catalyst and 3 hours reaction time.
Keyword : α-terpineol, α-pinene, turpentine, H2SO4</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2019-02-15</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/sju/ijcs/article/view/23382</dc:identifier>
	<dc:identifier>10.15294/ijcs.v8i1.23382</dc:identifier>
	<dc:source xml:lang="en-US">Indonesian Journal of Chemical Science; Vol 8 No 1 (2019); 23-27</dc:source>
	<dc:source>2502-6844</dc:source>
	<dc:source>2252-6951</dc:source>
	<dc:source>10.15294/ijcs.v8i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/sju/ijcs/article/view/23382/12698</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2019 Indonesian Journal of Chemical Science</dc:rights>
</oai_dc:dc>