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All Journal Cakrawala Pendidikan Jurnal Penelitian Saintek Jurnal Penelitian Humaniora Jurnal Sains Dasar Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia Jurnal Riset Pendidikan Kimia (JRPK) Indonesian Journal of Chemistry and Environment Jurnal Elemen Kimia Jurnal Riset Pembelajaran Kimia
Cornelia Budimarwanti
Universitas Negeri Yogyakarta
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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Analisis Kebutuhan Buku Pengayaan Berbasis Chemo-Entrepreneurship pada Materi Kimia Hijau Terintegrasi Sustinable Development Issue Isnaeni, Wahyu Nur; Budimarwanti, Cornelia
Jurnal Riset Pendidikan Kimia (JRPK) Vol. 15 No. 1 (2025): Jurnal Riset Pendidikan Kimia (JRPK), Volume 15 Nomor 1 (2025)
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JRPK.151.02

Abstract

Abstrak Ilmu kimia erat kaitannya dengan isu-isu yang ada dalam kehidupan sehari-hari. Ilmu kimia dapat menjadi sarana dalam menyukseskan Sustainable Development Goals  (SDGs) dan membantu siswa untuk meningkatkan jiwa kewirusahaan melalui materi kimia hijau. Penelitian ini dilakukan untuk mengetahui apakah diperlukan pengembangan buku pengayaan berbasis chemo-entrepreneurship pada materi kimia hijau untuk siswa SMA fase e terintegrasi sustainable development issue. Partisipan dalam penelitian ini yaitu 7 guru dari empat sekolah yang berbeda di Yogyakarta dan telah mengetahui atau mengajarkan materi kimia hijau. Penelitian ini menggunakan metode penelitian survey eksploratif dengan pengkodean interpretatif. Hasil dari penelitian yang dilakukan menyatakan bahwa perlu dilakukan pengembangan buku pengayaan berbasis chemo-entrepreneurship pada materi kimia hijau untuk siswa SMA fase e terintegrasi sustainable development issue. Abstract Chemistry is closely related to issues that exist in everyday life. Chemistry can be a means of making the Sustainable Development Goals (SDGs) a success and help students to improve their entrepreneurial spirit through green chemistry material. This research was conducted to find out whether it is necessary to develop a chemo-entrepreneurship based enrichment book on green chemistry material for high school students in phase e with an integrated sustainable development issue. Participants in this research were 7 teachers from four different schools in Yogyakarta who knew or taught green chemistry material. This research uses an exploratory survey research method with interpretive coding. The results of the research conducted state that it is necessary to develop a chemo-entrepreneurship based enrichment book on green chemistry material for high school students in phase e with an integrated sustainable development issue.
Optimasi konsentrasi katalis Natrium Hidroksida pada sintesis 2,5-bis((E)-3,4-dimetoksibenziliden)siklopentan-1-on Tjakraningtyas, Wahyu; Budimarwanti, Cornelia
Jurnal Penelitian Saintek Vol 29, No 1 (2024)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v1i1.71399

Abstract

Penelitian ini dilakukan dengan tujuan untuk sintesis senyawa 2,5-bis((E)-3,4 dimetoksibenziliden)siklopentan-1-on dengan variasi mol katalis NaOH serta mengetahui rendemen senyawa (2E,5E)-2,5-bis(3,4-dimetoksibenziliden) siklopentanon yang telah disintesis. Sintesis dilakukan dengan mereaksikan siklopentanon sebanyak 5 mmol dan veratraldehida sebanyak 10 mmol menggunakan katalis NaOH dengan variasi 5, 10, 15, dan 20 mmol dan pelarut etanol. Proses sintesis berjalan melalui reaksi kondensasi Claisen-Schmidt menggunakan metode microwave assisted organic synthesis selama 60 detik. Hasil sintesis yang diperoleh kemudian dilakukan karakterisasi melalui KLT dan KLT scanner, FTIR, dan 1H-NMR. Hasil penelitian diperoleh senyawa berbentuk serbuk kuning dan hasil karakterisasi menunjukkan bahwa senyawa tersebut merupakan senyawa target (2 E,5E)-2,5-bis(3,4-dimetksibenziliden) siklopentanon. Rendemen senyawa (2E,5E)-2,5-bis(3,4-dimetoksibenziliden) siklopentanon yang dihasilkan oleh variasi mol katalis NaOH 5, 10, 15, dan 20 mmol secara berturut-turut yaitu 71,75%; 60,44%; 118,42%; dan 113,54%. Hasil penelitian ini menunjukkan bahwa katalis NaOH berpengaruh terhadap rendemen hasil sintesis.Kata Kunci: 2,5-bis((E)-3,4-dimetoksibenziliden)siklopentan-1-on, kondensasi Claisen- schmidt, metode MAOSOptimization of Sodium Hydroxide catalyst concentration in the synthesis of 2,5-bis((E)-3,4-dimethoxybenzylidene)cyclopentan-1-one Abstract: This study aimed to synthesize the compound 2,5-bis((E)-3,4-dimethoxybenzylidene) cyclopentan-1-one with varying molar quantities of NaOH catalyst and to determine the yield of the synthesized (2E,5E)-2,5-bis(3,4-dimethoxybenzylidene) cyclopentanone. The synthesis was carried out by reacting 5 mmol of cyclopentanone and 10 mmol of veratraldehyde using NaOH catalyst in amounts of 5, 10, 15, and 20 mmol, with ethanol as the solvent. The synthesis process involved Claisen-Schmidt condensation via microwave-assisted organic synthesis for 60 seconds. The synthesized products were characterized using TLC and TLC scanner, FTIR, and ^1H-NMR. The results revealed that the synthesized compound was a yellow powder, and the characterization confi rmed it as the target compound, (2E,5E)-2,5-bis(3,4-dimethoxybenzylidene) cyclopentanone. The yields of (2E,5E)-2,5-bis(3,4-dimethoxybenzylidene) cyclopentanone obtained with NaOH catalyst amounts of 5, 10, 15, and 20 mmol were 71.75%, 60.44%, 118.42%, and 113.54%, respectively. These fi ndings indicate that the amount of NaOH catalyst signifi cantly aff ects the yield of the synthesis. Keywords: (2E,5E)-2,5-bis(3,4-dimethoxybenzylidene)cyclopentanone, Claisen-schmidt condensation, MAOS method
Synthesis of Methyl Citronellate through Fischer Esterification Reaction between Methanol and Citronellic Acid from Oxidation Product of Citronellal Wahyono, Joko; Budimarwanti, Cornelia
Indonesian Journal of Chemistry and Environment Vol. 8 No. 1 (2025): JUNE 2025
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v8i1.91039

Abstract

The purpose of this research was to synthesis methyl citronellate through Fischer esterification reaction between methanol and citronellic acid from oxidation product of citronellal and characterize the methyl citronellate of esterification product by TLC method, IR spectroscopy, and GC-MS. This research was started by oxidizing citronellal to citronellic acid using silver oxide (Ag2O) oxidator obtained from reaction between silver nitrate (AgNO3) with sodium hydoxide (NaOH) and oxidation reaction at temperature of 55-60oC for 35 minutes. Then, the oxidation product of citronellal was reacted with methanol through Fischer esterification reaction using concentrated sulfuric acid (H2SO4) catalyst at 46oC for 2 hours. The products of citronellal oxidation and esterification were identified using TLC, IR spectrophotometer, and GC-MS. The result of this research showed that the Fischer esterification reaction between methanol with citronellic acid from oxidation product of citronellal was produce methyl citronellate in the form of brownish yellow liquid and smelled fragrant. The result of methyl citronellate from esterification product characterization by using TLC method, IR spectroscopy, and GC-MS showed that the methyl citronellate has a purity of 17 % and a yield of 13.76 %.
“RUMAHKU LABORATORIUM KIMIAKU”, BUKU EKSPERIMEN KIMIA DI KEHIDUPAN SEHARI-HARI SEBAGAI PENERAPAN KONSEP MATERI KIMIA DI SMA Kurniawan, Yohanes Dedi; Budimarwanti, Cornelia
Jurnal Riset Pembelajaran Kimia Vol 8, No 2 (2023): Jurnal Riset Pembelajaran Kimia
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jrpk.v8i2.20631

Abstract

Penelitian ini adalah penelitian pengembangan dalam bidang pendidikan kimia. Tujuan dari penelitian ini adalah mengembangkan buku pedoman guru yang berisikan eksperimen kimia di kehidupan sehari-hari dan mengetahui kelayakan media pembelajaran berdasarkan penilaian 5 guru SMA. Dalam pengembangan buku eksperimen kimia peneliti menggunakan metode ADDIE yang terdiri dari 4 tahap, yaitu analisis, perencanaan, pengembangan dan implementasi. Buku eksperimen kimia yang telah dibuat kemudian divalidasi oleh dosen pembimbing, ahli media, ahli materi dan pembelajaran kimia. Kemudian produk dinilai oleh 5 guru kimia SMA sebagai reviewerKualitas buku eksperimen kimia dapat diketahui melalui penilaian lima guru kimia SMA yang ditinjau dari aspek isi, aspek kebahasaan, aspek penyajian, efek media terhadap strategi pembelajaran dan tampilan. Buku eksperimen kimia yang dikembangkan mendapat skor rata-rata 4,14 dari skor maksimal ideal 5 dengan kategori baik (B).
Co-Authors Abdillah, Muchammad Ikmal Anasriah, Tria Novita Chintya Ayu Triwijayanti Dewi, Romala Dini Rohmawati Dwi Lestari Eka Purnama Evy Yulianti Handayani, Sri Indyah Sulistyo Arty Indyah Sulistyo Arty Isnaeni, Wahyu Nur Karim Theresih Karim Theresih Karim Theresih Kurniawan, Yohanes Dedi Maghisya Oktanni Maghisya Tri Oktanni Melati Khairuddean Novia Putri Ramadhani Prashinta Nita Damayanti Pratiwi, Oktavia Rahmawati, Dita Rakhmawati Kurniasih Sari, Dista Arum Sri Handayani Tesia Aisyah Rahmania Tjakraningtyas, Wahyu Utami, Julia Wahyono, Joko Winarto Haryadi Yuliyanti, Diana