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INDONESIA
Akta Kimia Indonesia
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 18584586     EISSN : 25493736     DOI : -
Core Subject : Science,
Chemistry
Akta Kimia Indoneisa publishes peer-reviewed open access articles in all areas of chemistry, including: Analytical Chemistry Physical Chemistry Organic Chemistry Inorganic Chemistry Biological Chemistry To submit an article, you need to register first. Please click register in the menus above.
Arjuna Subject : -
Articles 99 Documents
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Analisis Furosemid Injeksi 10 mg/mL Dalam Validasi Proses Furosemid Injeksi 10 mg/mL Secara Spektofotometri UV-Vis Trisna, Meyci; Mujiyanti, Apri; Azharman, Zefri; Antara, Nico
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.19353

Abstract

Furosemide is a diuretic derivative of anthranilic acid. The diuretic activity of furosemide is mainly by inhibiting the absorption of sodium and chloride. This study aims to validate the production process of 10mg/mL injection furosemide; therefore, it can be known whether the production process has run well and product is suitable for consumption. There are eight parameters in this study including the determination of furosemide concentration in the sample, the results obtained that the concentration is 102.14% which is a qualified number. Furthermore, the analysis of the uniformity of the final mass concentration, with the difference in concentrations obtained meets the requirements, the RSD value is 1.64. This indicates that the mixing process has run well, accordingly it is able to produce a homogeneous product. Furthermore, the determination of volume uniformity, sterility, endotoxins, bioburden, pH and particulates also provides qualified results, hence the production process of the three batches analyzed runs well so as to produce qualified and consistent products.
Green Synthesis of Fe3O4 Nanoparticles Using Pineapple Peel Extract For Adsorption of Rhodamine B Kodarta, Wahyu; Sinaga, July Fitry; Pane, Reza Hotna Uli; Pasaribu, Martali Uli; Ichsan, Ahmad Farizt; Bemis, Restina
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.21671

Abstract

AbstractThis research aims to develop an environmentally friendly method for the synthesis of Fe₃O₄ nanoparticles using Tangkit pineapple peel extract with iron sand from the Batanghari River, Jambi, as raw materials. FTIR analysis detected Fe-O metal oxide clusters at a wavenumber of 533 cm⁻¹, confirming the presence of Fe₃O₄. The XRD diffraction pattern according to ICSD reference data number 01-076-0956 shows the highest intensity peak at an angle of 2θ 30.17°; 35.47°; 57.18°; and 62.77° with an average crystal diameter of 19.99 nm. SEM showed irregular particle morphology, while particle size analysis revealed an average particle size of 198 nm. Magnetic properties test using VSM shows that the nanoparticles are superparamagnetic with a saturation magnetization (Ms) of 26.25 emu/g. In the Rhodamine B adsorption test, the highest efficiency was achieved at a mass of 100 mg with a value of 95.21%. The optimum adsorption time occurred at 75 minutes with an efficiency of 98.52%. These results indicate that Fe₃O₄ nanoparticles synthesized via the green synthesis method using Tangkit pineapple peel extract have high potential for application in processing textile dye waste.Keywords: green synthesis, Fe3O4 nanoparticles, bioreductor, environmentally friendly. adsorbent.AbstrakPenelitian ini bertujuan mengembangkan metode ramah lingkungan untuk sintesis nanopartikel Fe₃O₄ menggunakan ekstrak kulit nanas Tangkit dengan pasir besi Sungai Batanghari, Jambi, sebagai bahan baku. Analisis FTIR mendeteksi gugus logam oksida Fe-O pada bilangan gelombang 533 cm⁻¹, mengonfirmasi keberadaan Fe₃O₄. Pola difraksi XRD sesuai data referensi ICSD nomor 01-076-0956 menunjukkan puncak intensitas tertinggi pada sudut 2θ 30,17°; 35,47°; 57,18°; dan 62,77° dengan diameter kristal rata-rata kristal sebesar 19,99 nm. SEM menunjukkan morfologi partikel tidak beraturan, sedangkan analisis ukuran partikel mengungkapkan rata-rata ukuran partikel 141,83 nm. Uji sifat magnetik menggunakan VSM menunjukkan nanopartikel bersifat superparamagnetik dengan magnetisasi saturasi (Ms) sebesar 26,25 emu/g. Pada uji adsorpsi Rhodamin B, efisiensi tertinggi tercapai pada massa 100 mg dengan nilai 95,21%. Waktu adsorpsi optimum terjadi pada 75 menit dengan efisiensi sebesar 98,52%. Hasil ini menunjukkan bahwa nanopartikel Fe₃O₄ yang disintesis melalui metode green synthesis menggunakan ekstrak kulit nanas Tangkit berpotensi tinggi untuk aplikasi dalam pengolahan limbah pewarna tekstil.Kata kunci: green synthesis, nanopartikel Fe3O4, bioreduktor, ramah lingkungan,  adsorben.
PEMBUATAN KARBON AKTIF AMPAS KELAPA DENGAN AKTIVATOR ASAM FOSFAT (H3PO4) UNTUK MENGADSORPSI ION LOGAM BESI (Fe) Prawiranti, Yulizar; Mandasari, Weni; Shofiyah, Sofi S; Febrianty, Irma R; Utami, Naniek T
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.22084

Abstract

Peat water contains high iron levels and is reddish-brown in color. Consuming iron in doses above the threshold can endanger health and even lead to sudden death. Additionally, iron pollution can disrupt aquatic ecosystems. Coconut pulp has the potential to adsorb heavy metal iron due to its cellulose, mannan, and galactomannan content. The stages of producing adsorbent from coconut pulp include preparation, carbonization, activation of activated carbon, testing of activated carbon consisting of moisture content, volatile matter content, ash content, and pure carbon content tests, FTIR testing, and determining the % adsorption efficiency of iron (Fe) metal ions and adsorption capacity of iron (Fe) metal ions using Atomic Absorption Spectrophotometry (AAS). Carbonization is carried out at a temperature of 400°C for 2 hours, and activation is performed with 3 N phosphoric acid activator for 24 hours. The FTIR results of coconut pulp activated carbon (CPAC) show a slight increase in the C=O stretching absorption peak and a decrease in almost all absorption peaks such as O-H stretching, C=C aromatic ring, C-H bending, C=O stretching, and =C-H aromatic. A new absorption peak appears in CPAC at the absorption region of 908.47 cm⁻¹, indicating the formation of =C-H aromatic bonds. The efficiency percentage shows that CPAC can adsorb Fe metal ions by 99.16% with an adsorption capacity of 0.22 mg/g, while coconut pulp carbon (CPC) can adsorb Fe metal ions by 34.66% with an adsorption capacity of 0.08 mg/g.  
PENGUJIAN pH, GUGUS FUNGSI DAN AKTIVITAS ANTIBAKTERI KRIM BERBAHAN VIRGIN COCONUT OIL (VCO) Sanjiwani, Ni Made Sukma; Wibawa, Agung Ari Chandra; Sudiarsa, I Wayan; Mirah Mariati, Ni Putu Ayu; Setya Cahyani, I Gusti Ayu Agung Dwita; Pramana, I Made Wisnu Yoga
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22603

Abstract

This study aims to determine the pH, determine the functional groups and determine the diameter of the inhibition zone of cream made from VCO. In this study, cream was made with 2 formulations, formula 1 with 15% VCO concentration and formula 2 with 20% VCO concentration. In making the cream, all the ingredients that will be used were weighed first. The oil phase (VCO, vaselin album, stearic acid, span 60, and propyl paraben) was heated to 70°C. The water phase (glycerin, methyl paraben, tween 80, and distilled water) was heated to 70°C. The water phase was gradually incorporated into the oil phase at 70°C. It was then homogenised at 2000 rpm for 15 minutes to cool. Both cream formulas were analysed for pH, functional groups and antibacterial activity.                                  The pH of VCO-based cream in formula 1 has an average pH value of 5.91 and formula 2 has an average pH value of 6.03, so each cream sample has an acidity level with a range of 4.5-6.5. The functional groups found in VCO-based cream formulas 1 and 2 are: C-H bending, C=C stretch (aliphatic and aromatic); C=N, C=O stretch (acids, aldehydes, ketones, amides, esters, anhydrides), CΞC stretch; CΞN, C-H stretch: CH3; CH2, Stretch C-H: C-H; C=C-H; Ar-H. In the range of numbers 3750 - 3000 cm-1 there are functional groups O-H; N-H. Waves 3000-1000 cm-1 have a sharp band shape and strong intensity. The wavenumber 3700-3100 cm-1 has a wide band shape and strong intensity. F2 cream has a larger inhibition zone diameter than F1 cream. The diameter of the inhibition zone of cream F2 is largest at a concentration of 10%, the greater the concentration the less the diameter of the inhibition zone.
Sintesis 2-Hidroksi Etil Ester Asam Lemak (2-HEE) dari Minyak Jelantah Sebagai Bioaditif Potensial Untuk Meningkatkan Lubrisitas Diesel Fosil Rendah Sulfur Firdausa, Yunita A; ZETRA, Yulfi; Firdhausya, Talitha F; Putri, Rizka; Burhan, Perry
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22941

Abstract

Pengembangan zat aditif didorong oleh turunnya daya lubrisitas dari bahan bakar diesel fosil akibat dari proses desulfurisasi. Senyawa hidroksietil ester asam lemak (2-HEE) yang disintesis pada penelitian ini berpotensi tinggi sebagai zat aditif alami atau bioaditif. Sintesis dilakukan dengan memanfaatkan limbah minyak goreng (jelantah) melalui proses transesterifikasi dengan etilen glikol melalui senyawa intermediet berupa metil ester asam lemak (FAME). Yield FAME sebesar 85,39% dihasilkan melalui reaksi antara minyak jelantah dan metanol dengan rasio molar metanol:minyak (6:1), katalis 1% (b/b minyak), selama 165 menit pada suhu 65°C dalam sistem refluks. Analisis KG-SM dari FAME menunjukkan bahwa minyak jelantah sebagian besar terdiri dari asam palmitat dan asam oleat. FAME selanjutnya direaksikan dengan etilen glikol (EG) dengan rasio molar 2:3, menggunakan katalis heterogen CaO 1,2% (b/bminyak) selama 6 jam pada temperatur 130°C dalam sistem distilasi vakum. Produk hasil sintesis 2-HEE mengandung 31,22% hidroksietil ester palmitat dan 36,26% hidroksietil ester oleat, dengan total kelimpahan senyawa 2-HEE sebesar 78,31%. Adanya gugus hidroksi dan asam lemak tak jenuh pada kerangka struktur senyawa 2-HEE diduga potesial untuk digunakan sebagai bioaditif untuk meningkatkan lubrisitas bahan bakar diesel fosil
KONVERSI LIMBAH MINYAK GORENG MENJADI BIODIESEL Wijayanti, Evi; Puspasari, Deny; Winarni, Winarni
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.21723

Abstract

Limbah minyak goreng dari penggorengan ayam geprek telah berhasil di konversi menjadi biodiesel. Konversi biodiesel dilakukan dengan menggunakan katalis NaOH dengan metode refluk pada suhu 65°C selama 60 menit dengan perbandingan mol asam oleat : methanol 1:2 dan variasi jumlah massa katalis 0,5%, 1%, 1,5%, 2%. Hasil pengujian viskositas, densitas, nilai kalori, titik nyala serta angka setana yang diperoleh sudah sesuai dengan SNI 7128 – 2015. Dari hasil penelitian ini, didapatkan jumlah variasi massa katalis 0,5% menunjukkan nilai analisa yang paling optimum dari jumlah variasi katalis yang lain. Dengan diperoleh hasil pengujian titik nyala sebesar 157, Densitas 40°C 0,866 g/cm3, Nilai Kalori 9.601 kal/gr, Angka Setana >75, dan Viskositas 5,4 cSt. Kata Kunci: Minyak Goreng Bekas, Limbah Minyak Goreng, Biodiesel, Katalis NaOH
SINTESIS SnO2-SiO2 MENGGUNAKAN DAUN KELAPA SAWIT SEBAGAI SUMBER SILIKA POTENSIAL DAN APLIKASINYA SEBAGAI DEKOLORISASI ZAT WARNA NUGROHO, SETYO EKO; YUDHA S, SAL PRIMA; MARYANTI, EVI; REAGEN, MUHAMAD ALVIN
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22229

Abstract

Penelitian ini bertujuan untuk mensintesis padatan SnO2-SiO2 dari daun kelapa sawit yang digunakan untuk dekolorisasi malachite green oxalate. Daun kelapa sawit disiapkan melalui pencucian dengan menggunakan HCl 10%. SnO2-SiO2 disintesis menggunakan metode solid state dengan bantuan sedikit pelarut. Hasil sintesis dikarakterisasi menggunakan X-ray Diffractometer (XRD) X-Ray Fluoresence (XRF), dan Fourier Transform Infrared Spectroscopy (FTIR). Analisis XRD memperlihatkan SnO2-SiO2 memiliki fasa amorf untuk SiO2  dan kristal SnO2. Analisis FTIR memperlihatkan puncak Si-O-Si dan O-Si-O pada bilangan gelombang 1067 cm-1 dan 796 cm-1 serta puncak Sn-O-Sn pada bilangan gelombang 542 cm-1. SnO2-SiO2 menunjukkan dekolorisasi pada proses dekolorisasi malachite green oxalate. Persentase efisiensi dekolorisasi dan kapasitas terbaik didapatkan pada perlakuan SnO2-SiO2 pada lama penyinaran 180 menit dengan persentase efisiensi dekolorisasi 46,33 % dengan kapasitasi 6,952 mg/g. Model kinetika dan isoterm yang didapatkan dalam proses dekolorisasi MGO oleh SnO2-SiO2 merupakan model kinetika reaksi orde semu pertama dengan nilai konstanta -0,0135 menit-1 dan Model isoterm Freundlich dengan nilai Kf 16.545 L/mg. Kinerja dekolorisasi yang dihasilkan merupakan hasil sinergis antara SnO2 dan padatan hasil pembakaran daun kelapa sawit.
Compositional and Thermal Effects on the Phase Stability and Crystallinity of Cu₂SnS₃ Nanoparticles Ismail, Agus; Nurika, Destia; Wismogroho, Agus Sukarto; Amal, Muhammad Ikhlasul
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22811

Abstract

Cu₂SnS₃ (CTS) is a promising semiconductor for photovoltaic applications, yet its synthesis via solid-state sintering remains insufficiently explored. This study examines the phase evolution and structural properties of CTS thin films fabricated from Cu, Sn, and S elemental precursors sintered at 300 °C, 400 °C, 500 °C, and 600 °C. X-ray diffraction (XRD) analysis confirmed that stoichiometric CTS attained optimal phase purity at 500°C, whereas off-stoichiometric compositions resulted in secondary phases such as Cu₂S, Cu₉.₆₇Sn₂.₃₃S₁₃, and SnS₂. Scanning electron microscopy (SEM) revealed microstructural transformations, with well-defined crystalline domains emerging at 500°C but excessive grain coalescence in Cu-rich samples. Energy-dispersive X-ray spectroscopy (EDX) verified compositional variations, underscoring the critical role of stoichiometry in phase stability. These findings demonstrate that precise compositional control and optimized sintering conditions are essential for high-purity CTS films, advancing their potential for enhanced photovoltaic performance and long-term operational stability.
Optimasi Suhu dan Lama Waktu Maserasi Terhadap Aktivitas Antioksidan Daun Sirih Cina (Peperomia Pellucida L. Kunt) Susanti, Reny Eka Evi; Malis, Eko
Akta Kimia Indonesia Vol 10, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v10i1.22056

Abstract

Penelitian ini bertujuan untuk menentukan suhu dan lama waktu maserasi yang paling optimal dalam menghasilkan aktivitas antioksidan pada ekstrak daun sirih cina (peperomia pellucida l. kunt). Metode yang digunakan meliputi persiapan sampel, ekstraksi daun sirih cina (peperomia pellucida l. kunt). dengan variasi suhu dan lama waktu maserasi, serta pengukuran aktivitas antioksidan menggunakan metode DPPH. Hasil penelitian menunjukkan bahwa nilai IC50 aktivitas antioksidan optimal tercapai pada lama waktu maserasi 24 jam dengan nilai 23,24 ppm, dan pada suhu 55°C dengan nilai 55,83 ppm.

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