INDONESIAN JOURNAL OF CHEMICAL RESEARCH
ISSN : 23549610     EISSN : 26145081
Indonesian Journal of Chemistry Research (IJCR) merupakan jurnal ilmiah nasional yang sudah terindex oleh Portal Garuda. IJCR menerbitkan artikel-artikel ilmiah yang bersifat riset orisinal, review singkat (mini-review), review lengkap (full-review) di bidang Kimia Organik, Kimia Anorganik, Kimia Analitik, Kimia Fisik, Biokimia, Kimia Material, dan Kimia Lingkungan.
Articles 37 Documents
Studi Perlakuan Reaksi Isomerisasi 3-Carene Menjadi 4-Carene Menggunakan Katalis Natrium-O-Klorotoluena Hidayati, Baiq Nisfi; Julianto, Tatang Shabur; Rubiyanto, Dwiarso
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 1, ISSUE 2, 2014
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol1.iss2.art2

Abstract

Telah dilakukan penelitian tentang isomerisasi 3-carene menjadi 4-carenemenggunakan katalis natrium-o-klorotoluena dengan perlakuan yang berbeda dariperlakuan sebelumnya yaitu dilakukan pembuatan katalis natrium-o-klorotoluena dandirefluks pada temperatur 250 oC selama 12 jam. Selanjutnya ditambahkan 3-carene dandi refluks kembali pada temperatur 170 oHasil penelitian menunjukkan bahwa menggunakan perlakuan yang berbeda(katalis dan reaktan tidak dicampur) dari perlakuan sebelumnya (katalis dan reaktandicampur) tidak dapat terbentuk katalis natrium-o-klorotoulena terhadap isomerisasi 3-carene menjadi 4-carene. Hal ini disebabkan karena tidak terbentuknya katalis natrium-oklorotoluena dan proses isomerisasinya tidak bereaksi sempurna sehingga tidak diperolehsenyawa 4-carene melainkan diperoleh senyawa 3-carene, β-pinene dan pelarut
Application of Lignin as Adsorbent for Silver (Ag) and Copper (Cu) on Electroplating Waste in Kota Gede Prakoso, Nurcahyo Iman
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 3, ISSUE 1, 2018
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol3.iss1.art1

Abstract

Lignin was a component of wood and always eliminated by chemical processing in many industries. On the other hand, oil palm bunches were the waste of palm oil industry, where that also containing high lignin.This study used lignin from residual waste of palm oil industry as biomass to adsorb silver (Ag) and copper (Cu) metal that is contained in electroplating waste by looking at lignin mass ratio, temperature and time in order to obtain optimal adsorption condition. The mass variations used were 100 mg, 200 mg, 300 mg, 400 mg, and 500 mg. While for the variation of contact time were 2 hours, 3 hours, 4 hours, 5 hours, 6 hours. For temperature variations were 30 °C, 40 °C, 50 °C,   and  60 °C.The results showed that the most optimal lignin mass ratio in adsorbing silver and copper metals was 200 mg/ 50 mL. While the most optimal contact time were 4 hours for Ag and 2 hours for Cu. For the most optimum temperature in adsorbing Ag metal at 50 °C and for Cu metal at 30 °C.
ANALYSIS OF PHOSPHORUS AND POTASSIUM LEVELS IN ORGANIC FERTILIZER IN THE INTEGRATED LABORATORY OF JOMBANG DISTRICT AGRICULTURE OFFICE Zakiyah, Zahrah Nur; Rahmawati, Cicik; Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 3, ISSUE 2, 2018
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol3.iss2.art1

Abstract

Quantitative analysis in the integrated laboratory of Jombang District Agriculture Office has been done on two samples of organic fertilizer with phosphorus and potassium parameters, considering these two elements are macronutrients which have an important role in the growth and development of plants. Determination of phosphorus level has been done by ascorbic acid method using double beam UV-Visible spectrophotometer, while determination of potassium level has been done by flame photometric method. There are 2 samples code of organic fertilizer, 13/F/16 and 14/F/16. From the result of analysis, the phosphorus level as P2O5 in 13/F/16 sample is 0.275%, while in the 14/F/16 sample is 0.29%. The potassium level as K2O in 13/F/16 sample is 2.58%, while in the 14/F/16 sample is 2.67%. These results meet the requirements for compost quality standards based on SNI 19-7030-2004, because they exceed the minimum requirements, which are 0.10% for phosphorus level and 0.20% for potassium level.
Modifikasi Zeolit Dengan Tembaga (Cu) Dan Uji Sifat Katalitiknya Pada Reaksi Esterifikasi Arjek, Orien Claudia Handayani; Fatimah, Is
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol2.iss1.art3

Abstract

Zeolite modification with Cu has been conducted. Material modification is done by impregnating Cu through a zeolite powder reflux process with CuSO4.5H2O solution so that theoretical Cu concentration is 5% followed by oxidation and reduction of solids. Material characterization was performed by x-ray diffraction analysis (XRD), Fourier Transform Infra-Red (FTIR) and acidity testing of Cu/Zeolite catalyst.The results showed that the crystallinity level of Cu/Zeolite did not change significantly when compared with natural zeolite. Changes occur at the intensity of the resulting peak, as at the peak of 2θ 27.826 º which is the mordenite phase in Cu-zeolite has a peak intensity of 1360, while at zeolite with peak of 2θ 27,760 º with the same phase meliki the smaller intensity of 1048. Testing the acidity of the catalyst was carried out by adsorbing pyridine into the catalyst, then calculating the adsorbed pyridine level, in the zeolite samples of pyridine adsorbed by 0.003 g / g while in the Cu-zeolite sample of 1.0574 g / g. The result of analysis with FTIR to show acidity level is seen in the range of wave number between 1450-1495 cm-1, from zeolite catalyst with wave number 1491,17 cm-1 peak intensity (% T) equal to 6,53, while at Cu-zeolite with wave number 1468.05 cm-1 peak intensity (% T) of 10.99. Testing of catalytic properties of Cu-zeolite catalyst on esterification reaction was done by taking acetic acid with concentration of 0.05 mol and methanol with concentration of 0.1 mol, then added 0.2 gram of catalyst, then reflux process for 1 hour. The results of reflux in the form of methyl esters were then analyzed by gas chromatography to see the retention time and the area of the resulting area. The use of Cu-zeolite catalysts yielding ester is indicated by the appearance of the ester peak.
Degradationof Laundrywastewater By Electrolysis Method Using Carbon Electrode Handoko, Teguh Imam; Riyanto, Riyanto; Julianto, Tatang Shabur
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 1, ISSUE 2, 2014
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol1.iss2.art8

Abstract

Telah dilakukan penelitian tentang degradasi limbah laundri dengan metode elektrolisis menggunakan elektroda karbon. Limbah laundri sangat berbahaya bagi lingkunan. Limbah laundri yang sebelumnya sering dibuang ke badan air dan mencemari lingkungan dimasukkan ke dalam gelas beker yang sudah diberikan pengaduk magnetik. Elektroda karbon kemudian dipasang sedemikian rupa sehingga kedua elektroda saling berdekatan. Kemudian elektroda dihubungkan dengan sumber arus dirrect current. Dalam penelitian ini dilakukan variasi tegangan dan waktu yaitu pada tegangan5-20 volt dan 1-5 jam. Katoda dihubungkan dengan kutub positif, sedangkan anoda dihubungkan dengan kutub negatif. Pada katoda dan anoda luas yang tercelup ke dalam larutan sedalam 4 cm dengan luas permukaan 9,4 cm2 Hasil penelitian menunjukkan bahwa arus dan waktu sangat berpengaruh terhadap presentase degradasi limbah laundri. Presentase degradasi limbah laundri yang didapatkan dengan hasil baik yaitu sebesar 50,98 % pada saat elektrolisis dengan potensi 20 volt dengan waktu elektrolisis 5 jam.
Penggunaan Ekstrak Pigmen Kulit Buah Manggis (Garnicia Mangostana) Sebagai Zat Peka Cahaya TiO2-Montmorillonit Dalam Dye-Sensitized Solar Cell (DSSC) Djaelani, Basitoh; Fatimah, ls; Julianto, Tatang Shabur
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 1, ISSUE 1, 2014
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol1.iss1.art1

Abstract

Pembuatan panel surya jenis Dye Sensitized Solar Cell (DSSC) telah dilakukan menggunakan bahan berbasis komposit TiO2/montmorillonit dan TiO2 dengan zat pemeka cahaya ekstrak Pigmen Kulit Buah Manggis (PKBM). Sel surya dibentuk dengan struktur sandwich, dimana sebagai elektroda adalah gelas Indium Tin Oxide (ITO), TiO2 yang terdispersi pada montmorillonit sebagai semikonduktor dan elektrolit iodine (I-) dan triiodide (I3-) sebagai pasangan redoks dalam pelarut. Elektroda kerja berupa lapisan TiO2/montmorillonit dan TiO2 pada subkat kaca ITO serta elektroda lawan berupa lapisan platina. Hasil XRD rnenunjukan fase kristal anatase pada komposit TiO2/montmorillonit. Hasil analisis BET diperoleh luas permukaan spesifik TiOz dan komposit TiO2/montmorillonit yaitu 45,11 m2/g dan 174,79 m2/g, serta volume total pori TiO2 6,24x10-3 cc/g sedangkan TiO2/montmorillonit 3,24x10-1cc/g. Hasil karakterisasi komposit TiO2-Montmorillonit pada temperatur 30°C dan l00°C dengan DRUV-Vis menunjukanabsorbansi pada daerah panjang gelombang 200-400 nm. Sementara pengujian efisiensi menggunakan Keithley system source 26A2 A dihasilkan efisensi sel surya berbasis komposit TiO2/montmorillonit yaitu 0,040%  lebih tinggi dibandingkan efisiensi menggunakan TiO2 yaitu sebesar 0,032%.
Essential oils from Alpinia purpurata (Zingiberaceae): Chemical composition and Formulation of antiacne cream Yustica, Farah Khilma; Widiastuti, Nur Intan; Sapitri, Nava; Fitriastuti, Dhina
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 4, ISSUE 1, 2019
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol4.iss1.art3

Abstract

Jerawat merupakan penyakit radang yang terjadi di kulit wajah, leher, dada dan punggung yang salah satunya disebabkan oleh bakteri. Salah satu bahan yang memiliki aktivitas antibakteri yaitu minyak lengkuas merah. Minyak atsiri diperoleh dengan cara distilasi uap-air. Penelitian ini bertujuan untuk mengetahui kandungan kimia minyak atsiri lengkuas merah Alpinia purpurata (Zingiberaceae) dan formulasi krim dari minyak atsiri lengkuas merah sebagai krim anti jerawat. Sediaan krim dipilih karena merupakan sistem emulsi yang mudah dioleskan dengan tekstur yang lembut dan dapat digunakan pada bagian kulit yang luas dan berfungsi sebagai pelindung yang baik bagi kulit. Minyak atsiri diformulasikan dalam sediaan krim dengan perbandingan konsentrasi minyak atsiri F1(0 persen), F2 (2,5persen), F3 (5persen), F4 (10persen). Minyak atsiri lengkuas merah diuji sifat fisik meliputi warna, bau, rendemen, berat jenis, indeks bias serta dianalisis menggunakan GC-MS. Berdasarkan hasil GC-MS minyak lengkuas merah didominasi oleh senyawa Beta-sesquiphellandrene dan Beta-bisabolene yang merupakan golongan terpenoid. Evaluasi sediaan krim meliputi pemeriksaan organoleptis seperti bau, warna, bentuk serta pengujian daya sebar, daya serap, homogenitas, pH, dan antibakteri. Hasil evaluasi sediaan krim menunjukkan sediaan homogen, pH sesuai dengan pH kulit, daya sebar yaitu meningkat untuk setiap penambahan beban. Kata kunci: Alpinia purpurata, minyak atsiri, formulasi, krim anti jerawat
Analisis Senyawa Berbahaya Dalam Parfum Dengan Kromatografi Gas-Spektrometri Massa Berdasarkan Material Safety Data Sheet (Msds) Iswara, Filasavita Prasasti; Rubiyanto, Dwiarso; Julianto, Tatang Shabur
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 1, ISSUE 2, 2014
Publisher : Universitas Islam Indonesia

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol1.iss2.art3

Abstract

This study was conducted to determine the harmful compounds in perfumes by gas chromatography-mass spectrometry (GC-MS). Perfume samples (A, B, C) obtained from the supermarket and the refill perfume fragrance that is almost the same. Methodology is the determination of specific gravity and refractive index. Chemical analysis performed using gas chromatography-mass spectrometry (GC-MS). Based on the results obtained three samples of data that have perfume composition profiles of the same constituent that is solvent, fixative agents, and perfuming agents. Compounds that are solvent are methanol, ethanol. Compounds that are fixative agent is 1,2-Butanediol, 3 ethoxy-1-propanol, limonene, dipropylene glycol, 2-(2-hydroxypropoxy)-1-propanol, 3,3’-oxybis-2-butanol. The compound is a substance which is dihydrojasmonat methyl fragrance, alpha-hexyl cinnamaldehyde. Dihydrojasmonat methyl is a compound that becomes the deciding factor perfume that smells like jasmine.
Halaman Depan IJCR, manajer
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

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Abstract

IJCR: Indonesian Journal of Chemical ResearchVol. 3, No. 1-2, Agustus 2017SALAM REDAKSIAssalamu’alaikum Wr.WbAlhamdulillahirobbil’alamiin. Setelah sekian lama vakum, IJCR; Indonesian Journal of Chemical Research kembali menerbitkan artikel-artikel yang berkaitan dengan penelitian dan kajian pustaka bidang kimia. Jurnal mengundang Bapak/Ibu Dosen/Peneliti untuk dapat berpartisipasi aktif pada edisi-edisi berikutnya.Wassalamu’alaikum Wr.Wb Editor
Synthesis and Characterization of Nano Activated Carbon Tea Waste (Camellia sinensis L.) Viewed from the Content and Ratio of Orthophosphoric Acid Wijaya, Daniel Ricky Putra; Martono, Yohanes; Riyanto, Cucun Alep
INDONESIAN JOURNAL OF CHEMICAL RESEARCH VOLUME 3, ISSUE 2, 2018
Publisher : Universitas Islam Indonesia

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Abstract

Waste of tea is still limited in terms of utilization, potentially to be made into nanocarbon. In this research, nanocarbon synthesis from the waste of tea through carbonation method using furnace and purification with HNO3 with activator substance used is H3PO4. The specific objective of this study was to determine the optimal levels and ratios of ortho-phosphoric acid and to determine the properties and characteristics of nanocarbon from tea waste. Based on the FT-IR spectra, the best ortho-phosphate acid levels and ratios are 50% and 1:2 (w/w) H3PO4. The XRD analysis showed that the activated carbon dregs obtained were C graphite which was characterized by the diffraction peak at 2theta: 26.2°; 26.5°; 42.2°; 42.4°; and 44.3°. Based on the TEM image obtained shows that the activated carbon of the resulting tea waste has a particle size of 20-40 nm.

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