cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Muhammad Nur Alam
Contact Email
kimiafsains@uncp.ac.id
Phone
+6285294880569
Journal Mail Official
cjcs@uncp.ac.id
Editorial Address
Program Studi Kimia, Fakultas Sains Universitas Cokroaminoto Palopo Kampus 2, Jl. Lamaranginang Kota Palopo Sulawesi Selatan
Location
Kota palopo,
Sulawesi selatan
INDONESIA
Cokroaminoto Journal of Chemical Science
Published by Universitas Cokroaminoto Palopo
ISSN : -     EISSN : 2723438X     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Energy Materials Science & Nanotechnology
The journal publishes two continuous issues annually, which means every accepted article in February - July will be published in Issue No. 1, and every accepted articles in August - Januar will be published in Issue No. 2. scope is organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry, theoretical chemistry and applied chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol. 3 No. 1" : 6 Documents clear
PENERAPAN ALAT SEDERHANA DALAM KONVERSI LIMBAH PLASTIK JENIS POLYPROPYLENE (PP) dan POLYETHYLENE TEREPHTHALATE (PET) MENJADI BAHAN BAKAR MINYAK Idawati Supu; Ni Nyoman Fitriani; Sardayanti Sulmi; Yulchen
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak Limbah plastik jenis PolyPropylene (PP) dan Polyethylene Terephthalate (PET) merupakan jenis polimer yang paling banyak dijumpai daalam bentuk limbah yang terbuang ke lingkungan. Tujuan dari penelitian ini adalah merancang alat sederhana dalam destilasi limbah plastik menjadi bahan bakar minyak, serta menentukan pH setiap bahan bakar yang dihasilkan. Metode yang digunakan adalah ekperimen dalam merangkai alat konversi sederhana menggunakan prinsip destilasi. Berdasarkan perbedaan massa limbah awal diperoleh Berdasarkan metode tersebut, dihasilkan perbandingan antara massa awal dan massa bahan bakan yang dihasilkan untuk masing-masing jenis limbah PP dan PET adalah 1:2 dan 1:1 dengan kisaran pH 4-5. Selain itu , terdapat perbedaan warna pada minyak yang dihasilkan dari dua tipe ini yakni warna kuning muda dan warna kuning gelap. Sistem kontrol suhu merupakan hal yang utama sepanjang berlangsungnya semua rangkaian proses pada metode penyulingan ini. Dari hasil tersebut menunjukkan bahwa limbah plastik dapat didaur ulang menjadi sesuatu yang bernilai tinggi sehingga minyak tersebut memiliki prospek yang baik untuk dijadikan solar atau bensin. Kata Kunci: Bahan Bakar Minyak, Destilasi, Limbah, Polyprophylene, Polyethylene Terephthlate. Abstract The Polypropylene (PP) and Polyethylene Terephthalate (PET) plastic wastes are the most common types of polymers are found as a waste which thrown into the environment. The purpose of this research is to design of instrumentation conversion simple by distillation theory in converting of plastic waste into fuel oil, and to determine the pH of each fuel that produced. The method used is an experiment in assembling a simple conversion device using the principle of distillation. Based on the difference in initial waste mass obtained. Based on this method, the resulting comparison between the initial mass and the produced mass from the type PP and PET waste are respectively 1:2 and 1:1 with a pH range of 4-5. Then, there is colour difference between this type namely light yellow and dark yellow. The controlling temperature is very important as long as all process on progress by distillation method. These results indicate that plastic waste can be recycled into something of high value so that the oil has good prospects to be used as diesel or gasoline.
ANALISIS KADAR SENYAWA FLAVONOID EKSTRAK ETANOL BUAH DENGEN (Dillenia serrata) MENGGUNAKAN SPEKTROFOTOMETER UV-VIS Ilmiati Illing; Sukarti; Rini Rusman
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dengen fruit is one of the endemic fruit from South Sulawesi which is often found in the forest or in the yard of residents' houses. Dengen fruit contains flavonoid compounds that have the potential as medicine. Flavonoid compounds are known to have pharmacological activities such as antioxidant, anti-inflammatory, antibacterial, anticancer, antidiabetic, antihypertensive, etc. This study aims to determine the levels of flavonoid compounds from Dengen fruit extract using UV-Vis spectrophotometer method. The method in this study used fresh fruit extract without a thickening process using a rotary evaporator, then tested the levels of flavonoids using a UV-Vis spectrophotometer. The results of the research that have been carried out have obtained the flavonoid content of the Dengen fruit extract, which is 10.23 mg/mL or equivalent to 1.023%.
IDENTIFIKASI SENYAWA METABOLIT SEKUNDER EKSTRAK ETANOL DAUN PECUT KUDA (Stachytarpheta jamaicensis L) MENGGUNAKAN GC-MS Ilmiati Illing; Sukarti; Firka Rustam
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the types of secondary metabolites contained in the ethanol extract of the leaves of Pecut Kuda (Stachytarpetha jamaicensis L) using GC-MS. This research was started by maceration on samples in the form of simplicia powder for 3x24 hours using 96% ethanol as solvent to remove the active compound content in Pecut Kuda leaves. The next step is to identify secondary metabolites using GC-MS. The results of the identification of secondary metabolites in GC-MS showed that the active compounds in the ethanol extract of Pecut Kuda leaves were Linolenic acid, Neophytadiene, Butyl 9,12,15-octadecatrionoate, Hexadecanoic acid, Cyclopenta (c) pyran-4-carboxylic acid. , and Camphene. These active compounds have functions as antioxidants, anti-inflammatory, antimicrobial, antibiotic and free radical scavengers in wound healing
ANALISIS KADAR Hg DAN Cd PADA KIJING AIR TAWAR (Pilsbryconcha exilis) DI SUNGAI DESA LAMASI PANTAI KABUPATEN LUWU Miftahul Jannah; Nurmalasari; Ridha Yulyani Wardi
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the heavy metal content of mercury (Hg) and cadmium (Cd) in the freshwater mussel (Pilsbryoconcha exilis) in the Lamasi Pantai village, Luwu district. This type of research is descriptive research. The instrument used in this research is ICP-MS. The results of the analysis showed the levels of heavy metal Cadmium (Cd) in fresh water mussel (Pilsbryconcha exilis) at the sample station I 0.04 ppm, station II 0.03 ppm, station III 0.06 ppm. The levels of heavy metal Mercury (Hg) at stations I, II, and III were <0.0005 ppm respectively. These results indicate the content of heavy metals contained does not exceed the SNI quality standard of 1.0 ppm.
ANALISIS CEMARAN LOGAM BERAT KADMIUM (Cd) PADA KERANG BULU (Anadara inflate) di PERAIRAN TELUK AMBON Rachmin Munadi; Asih Setiatin Lesilawang
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The analysis has been carried out to determine the content of heavy metals cadmium (Cd) which contained on feather shells (Anadara inflate) at the Ambon bay waters. The samples of shells were weighed as much as 5 grams, charred and ingnited in a furnace at 500oC for 2 hours, then added 5 Ml of concentrated nitric acid and left for 24 hours. Put it in 50 mL volumetric flask with distilled water to the mark and filter it until a clear filtrateis abtained. Determination of the levels of Cr and Cd using an atomic absorption of spectorophotometer at the respective wavelengths of 283,2 nm and 228,9 nm, for Cr and Cd. The analysis o the results obtained Cd metel analysis results was 046 ppm. Based on the research results, it was found that in the three samples of shells from the waters of Ambon Bay, Cd metel had exceeded the threshold value (NAB) that had been set. The level of Cr metal contained in each shells originating from the waters of Ambon Bay has exceeded the threshold value (NAB) based on the decree of the State Minister for the Environmet (KMLH) IN 2004, for marine biota, namely 0,001 ppm.
DEGRADASI PEWARNA TARTRAZIN DENGAN FOTOKATALIS TITANIUM DIOKSIDA (TiO2) Anwar Said
Cokroaminoto Journal of Chemical Science Vol. 3 No. 1
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tartrazin merupakan jenis pewarna sintetik yang banyak digunakan dalam industri makanan, kosmetik, dan obat-obatan yang apabila jatuh pada badan air dapat mencemarinya sehingga diperlukan senyawa yang dapat mendegradasinya salah satunya dengan menggunakan titanium dioksida (TiO2). Selanjutnya dalam mempelajari mekanisme reaksi dan perubahan yang terjadi selama proses degradasi fotokatalis titanium dioksida diperlukan informasi mengenai tetapan laju, waktu paruh dan laju degradasi yang merupakan faktor penentu dalam mempelajari mekanisme reaksi degradasi tersebut. Penelitian ini bertujuan untuk menentukan massa optimum TiO2 pada saat mendegradasi pewarna Tartrazin, menentukan tetapan laju degradasi tartrazin, menentukan waktu paru degradasi Tartrazin, dan menentukan laju degradasi tartrazin. Adapun prosedur penelitiannya yaitu desain reaktor fotokatalitik, penentuan panjang gelombang maksimum, pembuatan kurva kalibrasi tartrazin, penentuan massa optimum TiO2 dalam mendegradasi senyawa tartrazin, dan penentuan hasil degradasi senyawa tartrazin dengan penyinaran lampu UV. Hasil penelitian ini memperlihatkan bahwa massa optimum TiO2 dalam mendegradasi senyawa tartrazin adalah 50 mg, tetapan laju degradasi adalah 0,006 menit-1, waktu paruh degradasi adalah 115,5 menit dan laju degradasinya mengikuti persamaan reaksi orde pertama dimana laju maksimal terjadi pada menit ke-90 dengan nilai 0,0651 mg/L.

Page 1 of 1 | Total Record : 6

 1 

Filter by Year

0000


Reset
Filter By Issues
All Issue Vol. 7 No. 1 (2025): Februari - Juli Vol. 5 No. 2 (2023) Vol. 5 No. 1 (2023) Vol. 4 No. 2 (2022) Vol. 4 No. 1 (2022) Vol. 3 No. 2 (2021): Agustus Vol. 2 No. 1 (2020): Agustus Vol. 1 No. 1 (2019): Agustus Vol. 3 No. 1