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Indonesian Journal of Chemical Connections
Published by Indonesian Journal of Chemical Connections
ISSN : 29643325     EISSN : 29643325     DOI : -
Core Subject : Education, Social,
Education Social Sciences
IJCC is a peer-reviewed open-access journal dedicated to publishing original research articles in chemical sciences, chemistry education, science education, and natural sciences. It serves as a platform for students, educators, and researchers to share findings in innovative teaching methodologies, experimental chemistry, laboratory practice, and STEM education. The journal welcomes interdisciplinary studies connecting chemistry with society, technology, sustainability, and educational advancement.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 7 Documents
 1 
Karakterisasi Permukaan pada Aluminium Anodized dengan Variasi Waktu Menggunakan Pewarna Aprilia Melisa; Gifran Noval Rahmadoni; Rahmatul Husna; Sarah Rodiatul
Indonesian Journal of Chemical Connections Vol. 1 No. 1 (2023): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19448737

Abstract

This study investigates the surface characterization of anodized aluminium using natural dyes. Aluminium anodizing is an electrochemical process that produces a thick oxide layer on the aluminium surface. This layer can be coloured using various dyes. The purpose of this research is to analyze the effect of anodizing time on surface characteristics when using natural dyes such as turmeric. The results show that anodizing time significantly affects surface morphology and colour absorption.
Sintesis dan Karakterisasi Spinel Zinc Ferrite (ZnFe2O4) Menggunakan Metode Kopresipitasi Aprilia Melisa; Gifran Noval Rahmadoni; Rahmatul Husna; Sarah Rodiatul
Indonesian Journal of Chemical Connections Vol. 1 No. 1 (2023): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19449879

Abstract

This research focuses on the synthesis and characterization of spinel zinc ferrite (ZnFe2O4) using coprecipitation method. The study examines the structural, morphological, and magnetic properties of the synthesized materials. The results indicate that coprecipitation method produces ZnFe2O4 nanoparticles with uniform size distribution and good crystallinity.
Pengaruh Variasi Waktu dan Larutan Elektrolit Terhadap Perubahan Massa Logam Selama Proses Anodizing Aluminium Nabila Putri Rahayu; Silvi Busada; Umi Salamah; Yunella Eka Putri
Indonesian Journal of Chemical Connections Vol. 1 No. 1 (2023): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19450161

Abstract

This study examines the effect of time variation and electrolyte solution on metal mass changes during the aluminium anodizing process. The research investigates different anodizing durations and electrolyte concentrations to determine their impact on mass gain and surface quality. Results show that both time and electrolyte composition significantly influence the anodizing efficiency and coating thickness.
Identification of Cation Reaction and Separation of Group I Cations Olena Silvia; Olivia Ghina Olia; Rahma Dika Aulia Nasution; Rani Sakila Nasution; Silvia Deswinta Maharani Damanik
Indonesian Journal of Chemical Connections Vol. 1 No. 1 (2023): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19450013

Abstract

This study focuses on the identification of cation reactions and the separation process of Group I cations in qualitative analysis. The research examines the characteristic reactions of silver, lead, and mercury(I) cations using various reagents. Both dry and wet reaction methods are employed to distinguish and separate these cations from solution mixtures. The results provide a systematic approach for Group I cation identification in laboratory practice.
Science Process Skills in Science Education: A Systematic Literature Review on Conceptual Frameworks, Assessment Approaches, and Instructional Strategies (2010--2026) Irfan Ananda Ismail; Refitaniza
Indonesian Journal of Chemical Connections Vol. 1 No. 2 (2026): [In Progress] Vol. 1 No. 2 (2026): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.20139123

Abstract

Background: Science process skills (SPS) are foundational for scientific inquiry, yet their conceptualization, assessment, and instruction remain fragmented. Objective: This systematic review synthesizes empirical re- search on SPS across three dimensions: conceptual frameworks, assessment instruments, and instructional strategies. Methods: A PRISMA-guided search of Scopus, ERIC, Web of Science, and Google Scholar yielded 52 studies published between 2010 and 2026. Thematic synthesis and quality appraisal using a modified MMAT checklist were employed. Results: Frameworks consistently distinguish basic from integrated SPS, but opera- tional definitions vary. Assessment has shifted from multiple-choice tests toward Rasch-validated performance rubrics, though classroom adoption lags. Guided inquiry and POGIL are the most empirically supported strategies, yet effect sizes are moderated by teacher expertise, resources, and cultural context. Conclusion: Coherent, evidence-based frameworks integrating cognitive and sociocultural perspectives are needed. Future research requires longitudinal designs, cross-cultural instrument validation, and replication studies with adequate statistical power.
Komposisi Kimia dan Aktivitas Antibakteri Minyak Atsiri Kulit Kayu Manis (Cinnamomum burmannii) asal Sumatera Barat Aditya Pratama; Dewi Lestari
Indonesian Journal of Chemical Connections Vol. 1 No. 2 (2026): [In Progress] Vol. 1 No. 2 (2026): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.20140242

Abstract

Latar belakang: Minyak atsiri kayu manis (Cinnamomum burmannii) memiliki aktivitas biologis yang beragam, namun komposisi kimianya dipengaruhi faktor geografis. Data profil kimia minyak atsiri kayu manis asal Sumatera Barat masih terbatas. Tujuan: Penelitian ini menentukan komposisi kimia minyak atsiri kayu manis asal Sumatera Barat dengan GC- MS dan mengevaluasi aktivitas antibakterinya terhadap Staphylococcus aureus dan Escherichia coli. Metode: Minyak atsiri diekstraksi dengan destilasi uap-air. Komposisi kimia dianalisis dengan GC-MS. Aktivitas antibakteri diuji dengan difusi cakram dan dilusi cair. Hasil: Rendemen minyak atsiri sebesar 0,52%. Sebanyak 18 senyawa teridentifikasi (97,84% total komposisi) dengan sinamaldehid sebagai komponen utama (68,42%). Zona hambat terbesar terhadap S. aureus (18,3 mm) dan E. coli (14,7 mm) pada konsentrasi 10%. Nilai KHM berturut-turut 0,5% dan 1,0%. Kesim- pulan: Minyak atsiri kayu manis asal Sumatera Barat berpotensi sebagai agen antibakteri alami dengan sinamaldehid sebagai komponen bioaktif utama
UNES Hebat as a Cloud-Native GPS Attendance Platform and Institutional Technology Innovation for Higher Education Governance Irfan Ananda Ismail; Sufyarma Marsidin; Dewirman Prima Putra; Muhammad Takdir
Indonesian Journal of Chemical Connections Vol. 1 No. 2 (2026): [In Progress] Vol. 1 No. 2 (2026): Indonesian Journal of Chemical Connections
Publisher : Indonesian Chemical Connections Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.21512208

Abstract

Background: Accountability structures governing personnel attendance in Indonesian higher education demand audit-compliant records. Paper-based registers in mid-tier private universities suffer from proxy signing, retroactive logs, physical record loss, and manual entry overhead. Objective: This study presents the design, longitudinal evaluation, and operational stress-testing of UNES Hebat, a zero-hardware cloud-native GPS attendance platform deployed at Universitas Ekasakti in Padang, West Sumatra, Indonesia. Methods: The system features Progressive Web Application clients, edge content delivery, managed cloud databases, and a three-layer verification engine (Haversine GPS geofencing, real-time photographic auditing, and server-authoritative temporal validation via database stored procedures). Performance was tracked across 181 operational days with 288 registered staff, followed by a five-day stress event with 849 student participants. Results: The platform processed 29,251 attendance records with a 99.92% present-status rate and zero downtime across 4,344 server-hours. During the five-day orientation event, the platform absorbed a nineteen-fold concurrent-user surge without infrastructure modifications or performance loss. Conclusion: Server-authoritative validation paired with managed cloud architecture provides a resilient, cost-effective model for university digital governance.

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