Teaching chemistry must include some learning skills in scientific works. The students must have experience conducting small research in chemistry to train them the scientific methods. Some chemistry projects have been carried out by the students of…
Abstract - The toxicity of arsenic is known to be a risk to aquatic flora and fauna and to human health even in relatively low concentration. In this research an adsorption gel was prepared from agricultural waste material (orange waste) through…
Cellulose acetate ultrafiltration membrane is one of kinds process of membrane which has been utilized in separation and purification processes. Cellulose acetate can be obtained from acetylation of cellulose sengon wood (Paraserianthes falcataria).…
Serology remains the only way to monitor the effectiveness of vaccination of humans and animals against rabies. Many techniques for determining the level of rabies antibodies have been described, and all of the methods used rabies viruses as antigen.…
Preparation of edible film from carrageenan has been studied in this research. The edible films were made by phase inversion method with various carrageenan concentrations of 1 %, 1.25 %, 1.5 %, and 1.75 % (b/v) and palm oil as plasticizer with…
Cu/Silica gel catalyst preparation by using silica content which is obtained from Sabang natural crystobalit has been done. Isolated silica from crystobalit is reacted with natrium hidroxide to produce silicate natrium that reacted further with…
Crystalline sodium tantalate doped with La3+ ions (La/NaTaO3) has been successfully synthesized by sol-gel technique. The photocatalysts have been prepared by mixing of TaCl5, NaOH, and La(NO3)3.2H2O in the aqueous solution of H2O2. The resulting…
Penelitian tentang modifikasi bentonit dari Kuala Dewa, Aceh Utara menjadi bentonit terpilar alumina dan uji aktivitasnya pada reaksi dehidrasi etanol, 1-propanol dan 2-propanol telah dilakukan. Bentonit alam (Ca-bentonit) dimodifikasi melalui proses…
ABSTRAKLimbah logam berat yang dihasilkan dari berbagai proses industri banyak menimbulkan masalah bagi lingkungan. Berbagai usha telah dilakukan untuk mengatasi pencemaran logam berat ini. Salah satu metode yang dapat digunakan adalah metode…