Siregar, Alwi Gery Agustan, Department of Chemical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jl. Almamater, Padang Bulan, Medan 20155, Indonesia, Indonesia

• Vol 21, No 1 (2021) - Articles
  Synthesis and Characterization of Sodium Silicate Produced from Corncobs as a Heterogeneous Catalyst in Biodiesel Production
  Abstract  Full Text PDF
• Vol 21, No 5 (2021) - Articles
  Synthesis and Characterization of Polystyrene Sulfonic Acid from Expanded Polystyrene Foam as a Catalyst in the Synthesis of Triacetin
  Abstract  Full Text PDF

Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.