cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
HENNY SYAPITRI
Contact Email
ojs.usmindonesia19@gmail.com
Phone
+6281375137136
Journal Mail Official
ojs.usmindonesia19@gmail.com
Editorial Address
Jln. Kapten Muslim No.79 Medan
Location
Kota medan,
Sumatera utara
INDONESIA
JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Published by Universitas Sari Mutiara Indonesia
ISSN : ""     EISSN : 26153378     DOI : https://doi.org/10.51544/kimia.v6i1
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Materials Science & Nanotechnology
Focus on results study and literature review in the scope of chemistry education and chemistry sciences in the world. Scope: Chemistry Education Analytical chemistry, including new techniques and instrumentation Biochemistry and medicinal chemistry Inorganic chemistry, including main group, transition metal, and f-block compounds, as well as coordination, organometallic, and solid-state chemistry Materials chemistry of hard and soft matter, from the nanoscale upwards Nuclear chemistry and radioactivity Organic chemistry, including synthesis, characterization, and properties of organic compounds, as well as a study of organic reactions and their mechanisms Physical chemistry and chemical physics Sustainable, green, and environmental chemistry Theoretical and computational chemistry
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 132 Documents
 5   6   7   8   9 
EKSTRAKSI UNSUR FERRUM DARI LIMBAH PADAT PABRIK PULP DAN KERTAS Maria Peratenta Sembiring; Desi Heltina; Chairul Chairul; Zulfansyah Zulfansyah
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 6 No 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.292 KB) | DOI: 10.51544/kimia.v6i1.3012

Abstract

Functioning industrial waste as raw material or as a product is an achievement that will continue to be optimized, especially in industries where the amount of waste is significant. Pulp and paper mills produce waste in the form of solid, sludge, liquid and gas. The objective of this research is to extract the element ferrum contained in one of the solid wastes in pulp and paper mills. By using two fatty amine extractor, lauryl amine and stearyl amine with ethanol and n-hexane as solvents. The results showed that the use of stearyl amine as an extractor and n-hexane as a solvent with operating conditions of 4 hours and a dose of 5 grams gave the best results with an extraction yield of 10,964 mg/kg.
KARAKTERISASI DAN UJI TOKSISITAS AKUT EKSTRAK ETANOL DAUN SERAI (Cymbopogon citratus) DESA BANDAR KHALIPAH TERHADAP MENCIT JANTAN (Mus musculus) Tambunan, Pravil Mistryanto
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2968

Abstract

Research has been carried out to determine the LD50 value and observe the toxic effects of Ethanol Extract of Lemongrass Leaves (EEEL) on male mouse using 64 male mouse which were divided into 4 groups. The control group was given 0.5% CMC-Na suspension while the treatment group was given a single dose of EEEL suspension with doses of 1500, 3500, and 7000 mg/kg BW given on the first day. Observations of toxic symptoms, changes in body weight and number of deaths were carried out for a span of 7-14 days. After observation, the surviving mouses were sacrificed for macropathological and histopathological examination of the liver and kidneys. The determination of the LD50 value was calculated based on the Indonesian Pharmacopoeia Method Edition VI, while the statistical data was tested using Quadratic Nonlinear Regression (QNR) with the SPSS computer program. The simplicia characterization showed positive results on triterpenoid, tannin, flavonoid, and saponin tests, and anthraquinone glycosides and negative results on alkaloid and steroid tests. The results showed that there were toxic symptoms starting in the 3500 and 7000 mg/kg BW dose groups. The statistical results of Quadratic Nonlinear Regression (QNR) also showed no significant difference between each group. In addition, there were no color differences in all groups in the results of organ macropathology. However, liver damage was found on organ macropathological examination at doses of 1500, 3500, and 7000 mg/kg BW. Meanwhile, EEEL doses of 3500 and 7000 mg/kg caused glomerular hypertrophy and dilation of several renal tubules. The LD50 result is 4,965.92 mg/kg BW which indicates that EEEL was categorized as moderate toxic.
IDENTIFIKASI AMPHETAMINE, METHAMPETAMINE DALAM URINE SISWA SMA “X” METODE STRIP STICK Aruan, Dyna Grace Romatua; Siahaan, Maniur Arianto
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2973

Abstract

Amphetamines called alpha-methyl-phenethylamine, beta-phenyl-isopropylamine, or benzedrine are a class of simulants used to treat hyperactivity disorder due to inattention in adults and children. Methamphetamine is a drug that belongs to the amphetamine class. It works the same way as amphetamine can increase alertness, concentration, and when taken at high doses can cause euphoria. In general, marijuana is used through cigarettes, including the hallucinogenic drug group and class 1 drugs. The harmful impact of drugs on adolescents and especially for students is that drug use can cause negative effects that will cause mental and behavioral disturbances in a person, resulting in disruption of the neuro-transmitter system in the brain. nerves in the brain. Amphetamine and methampetamine levels were lowest in stems, roots and seeds, while the highest levels were found in flowers, sap and leaves. The type of research carried out is a qualitative analysis with the method of examining samples using ICT (Imunochromatography Test) with amphetamine and methamphetamine strips/sticks. The population in this study were 15 students of class XI SMA "X". The research conducted, took all the urine of class XI students. The urine collection process was carried out at the "X" School and then examined directly at the Science Laboratory in March 2022. The results of the overall urine sample examination were negative for amphetamine and methampetamine.
PENGARUH KADAR SILIKA DARI FLY ASH BATU BARA SEBAGAI BAHAN PENGISI HIDROGEL BERBAHAN DASAR SELULOSA BAKTERI (HSB) Surya, Indra; Purwandari, Vivi; Khodijah, Ani
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2975

Abstract

In one coal combustion process, about 80% of fly ash is produced and the rest is bottom ash, which is around 20%. The main components of coal fly ash originating from power plants are silica (SiO2), alumina (Al2O3), and iron oxide (Fe2O3), the rest are carbon, calcium, magnesium, and sulfur. Silica is one of the most dominant components of fly ash. Hydrogels obtained without fillers still have a Swelling capacity that is not maximized, it is necessary to process hydrogels with high absorption capabilities. One of the methods used to increase the absorption of hydrogels is to add silica as a voice filler. This study aims to determine the effect of 10, 20, 30, and 40% silica content from coal fly ash as a filler for bacterial cellulose-based hydrogels. Silica was obtained by extracting sodium silicate solution from fly ash followed by the manufacture of silica gel using 3N H2SO4. The resulting silica gel is added to the hydrogel manufacturing process. Hydrogel with silica as a filler which produces water absorption, FTIR, and SEM. The test results show that the silica content of 20% has the highest water absorption capacity of 1290%. With the concentration used, silica precipitation will produce a sharper silica peak in the FTIR results. SEM analysis with the addition of silica with bacterial cellulose produces pores on the HSB surface which can absorb air more quickly. The pores on the surface of the HSB affect the water absorption capacity (hydrophilicity) to increase. The addition of silica precipitated from fly ash waste as a filler in Bacterial Cellulose Hydrogel (HSB) was able to increase the Swelling capacity of HSB
PENERAPAN LKS BERBASIS CTL PADA PERUBAHAN MATERI UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA PAKET B DI MASA COVID – 19 PADA SPNF KOTA BANDA ACEH Prasetia, Aulia; Ismulyati, Sri; Damayanti, Rizki
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2976

Abstract

A research has been carried out with the theme "Implementation of CTL-Based Worksheets on Material Changes to Increase Student Learning Motivation in Package B during the Covid-19 Period at SPNF Banda Aceh City". This study aims to determine the effectiveness of the application of Contextual Teaching and Learning (CTL)-based LKS on material changes used in SPNF SKB Banda Aceh and to determine student responses to the application of Contextual Teaching And Learning (CTL)-based LKS on material changes in SPNF SKB. Banda Aceh City. The benefits of this research are for students, the LKS Module can be used as a learning resource, so that it can increase interest in learning chemistry, and can relate the material to the surrounding environment; For teachers, the LKS Module can be used as teaching materials to assist teachers in creating interesting and interactive learning situations; For schools, this research is expected to contribute to improving the conditions of chemistry learning so that it can create a better quality of education in the future. In this research, the method of observation, test (pre-test and post-test) and questionnaire. The results of this study indicate a positive response as evidenced by the data generated.
PREPARASI FILM NANOKOMPOSIT POLIVINIL ALKOHOL (PVA)/NANOKARBON DARI CANGKANG BUAH SAWIT (NCCS) DENGAN METODE PENCAMPURAN LARUTAN Purwandari, Vivi; Tarigan, Malemta
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2977

Abstract

Polyvinyl alcohol (PVA) has good compatibility when added as filler in the form of nanocarbon so that it can produce environmentally friendly nanocomposite products. Thus, the addition of nanocomposites to PVA-based films is expected to increase and improve the mechanical properties of the resulting PVA films. This study aims to utilize palm fruit shells as raw materials for nanocarbons and as fillers for nanocomposites, as well as to determine the mechanical properties and thermal strength of nanocarbon nanofibers in the PVA matrix. Composite films were made using the solution mixing method. The research was conducted by mixing PVA solution (3.5 g) with various concentrations of nanocarbon from palm fruit shells (NCCS) and 2 ml of glycerol and 1 g of PEG 400. Film characterization includes tensile test, scanning differential calorimetry (DSC), and conductivity test. Tensile test of PVA/NCCS nanocomposite resulted in tensile strength of 0.314 MPa and an elongation of 4.21925 %. The thermal test of PVA/NCCS nanocomposite with DSC yielded a melting point of around 146.06oC. Electrical conductivity of PVA/NCCS 107.1 (1.07 x 10-3) s/cm. PVA/NCCS nanocomposite based on conductivity scale including a semiconductor material.
PRODUKSI DAN KARAKTERISASI NANOSERAT SELULOSA ASETAT DENGAN METODE ELEKTROSPINING Harahap, Mahyuni; Zai, Liver Iman Putra
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.2978

Abstract

In this research, cellulose acetate fiber was produced by electrospinning method. Cellulose acetate was dissolved with acetone solvent and then putin to a cooling system torestrain the rate of evaporation of cellulose acetate. The conductivity and evaporation rate of the cellulose acetate solution were tested, and the cellulose acetate fiber sproduced were tested using scanning electron microscopy (SEM). The conductivity of the cellulose acetate solutionwas 3.45 S/cm at 15oC and almost doubled at 22oC. The cooling system test was ableto maintain the temperature of the cellulose acetate solution at 15 oC for approximately 2 minutes. In addition, bead fibers are produced due to their low conductivity.
PERBEDAAN KARAKTERISTIK KERTAS SENI DARI DAUN GLODOKAN TIANG KERING (Polyalthia Longifolia) KERING DENGAN TEKNIK PENGHALUSAN SECARA MANUAL DAN MACHINAL Ningrum, Nidia Cahya Pratama; Triatma, Bambang
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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

Abstract

Polyalthia longifolia is one of the plants that have roots that can with stand damage caused by vehicle vibrations that pass aroundit, so it is suitable to be used as a road shade plant. And can the dried leaves that fall can be used as raw materials for making handicraft products. This study will discuss the differences in the characteristics of an art paper with manual and machine smoothing techniques and see how the level of people's preference for art paper using experimental research methods and using the One Group Pretest-Postest research design. The dat a collection methodis observation and documentation, then the data results will be processed using percentage descriptive analysis. The results showed that the level of preference for the basic color of paper manually was 81.33% while manually 80%, cross-sectional contours of the paper were machined 76% while manually 78.66%, art paper texture was 69.33% while 74.66%, and the average tensile strength of paper manually is 57,552N, while manually is 25,506N and the average papere longation is 2,444% while the paper manually is 1,533%. When viewed from the characteristics, both paper shave their own advantages and disadvantages.
EKSTRAKSI UNSUR FERRUM DARI LIMBAH PADAT PABRIK PULP DAN KERTAS Sembiring, Maria Peratenta; Heltina, Desi; Chairul, Chairul; Zulfansyah, Zulfansyah
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i1.3012

Abstract

Functioning industrial waste as raw material or as a product is an achievement that will continue to be optimized, especially in industries where the amount of waste is significant. Pulp and paper mills produce waste in the form of solid, sludge, liquid and gas. The objective of this research is to extract the element ferrum contained in one of the solid wastes in pulp and paper mills. By using two fatty amine extractor, lauryl amine and stearyl amine with ethanol and n-hexane as solvents. The results showed that the use of stearyl amine as an extractor and n-hexane as a solvent with operating conditions of 4 hours and a dose of 5 grams gave the best results with an extraction yield of 10,964 mg/kg.
KARAKTERISASI POROSITAS NANOKARBON CANGKANG BUAH SAWIT MENGGUNAKAN SCANNING ELEKTRON MICROSCOPE (SEM) Vivi Purwandari; Hestina Hestina; Zuhairiah Nasution; Hotromasari Dabukke; M Mukmin
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 5 No. 1 (2021): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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

Abstract

Referring to data from the Directorate General of Plantations of the Ministry of Agriculture throughout 2019, the area of oil palm plantations in Indonesia is estimated at around 14.68 million hectares, with total production reaching 51.8 million tons per year or the largest in the world. In 1 ton of palm oil produces 6.5% shell waste or 65 kg. Nanocarbons with their unique properties are now widely used in various applications such as batteries, supercapacitors, sensors and so on. Utilization of palm fruit shell waste as a nanocarbon material with a micropore structure, large surface area and high pore volume is the goal of this research.

Page 7 of 14 | Total Record : 132

 5   6   7   8   9 

Filter by Year

2017 2025


Reset
Filter By Issues
All Issue Vol. 9 No. 2 (2025): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 9 No. 1 (2025): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 8 No. 2 (2024): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 8 No. 1 (2024): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 2 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 1 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 2 (2022): Jurnal Kimia Saintek dan Pendidikan Vol 6 No 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 1 (2022): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 5 No. 2 (2021): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 5 No 2 (2021): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 5 No. 1 (2021): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 5 No 1 (2021): JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 4 No 2 (2020): Volume 4 Nomor 2 Tahun 2020 Vol 4 No 1 (2020): Volume 4 Nomor 1 Tahun 2020 Vol 3 No 2 (2019): Volume 3 Nomor 2 Tahun 2019 Vol 3 No 1 (2019): Volume 3 Nomor 1 Tahun 2019 Vol 2 No 2 (2018): Volume 2 Nomor 2 Tahun 2018 Vol 2 No 1 (2018): Volume 2 Nomor 1 Tahun 2018 Vol 1 No 1 (2017): Volume 1 Nomor 1 Tahun 2017 More Issue